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1[[center: [- [[Characters/KamenRiderZeroOne Main Character Index]] | [[Characters/KamenRiderZeroOneHidenIntelligence Hiden Intelligence]] ([[Characters/KamenRiderZeroOneArutoHiden Aruto Hiden]]) | [[Characters/KamenRiderZeroOneAIMS AIMS]] | '''[=MetsubouJinrai=].net''' | [[Characters/KamenRiderZeroOneZAIAEnterprise ZAIA Enterprise]] ([[Characters/KamenRiderZeroOneGaiAmatsu Gai Amatsu]]) | [[Characters/KamenRiderZeroOneOtherCharacters Other Characters]] | [[Characters/KamenRiderZeroOneMovieExclusiveCharacters Movie-Exclusive Characters]]]] -]
2
3!!This is a partial character sheet for ''Series/KamenRiderZeroOne''. Visit [[Characters/KamenRiderZeroOne here]] for the main character index. Subjective trope and audience reactions should go on the [[YMMV/KamenRiderZeroOne YMMV page]].
4
5[[foldercontrol]]
6![=MetsubouJinrai.net=]
7[[quoteright:207:https://static.tvtropes.org/pmwiki/pub/images/thunderclap_of_destruction.png]]
8[[caption-width-right:207:The Thunderclap of Death and Destruction]]
9
10->"All as the Ark wills it."
11-->-- The organization's motto, spoken by all of '''[=MetsubouJinrai.net=]'s enforcers'''.
12
13A cyber-terrorist hacker group that resides in the ruined flooded city of Daybreak Town, who believe AIs to be superior to humanity and hack Humagears to cause chaos, acting with the intent of destroying humanity.
14
15'''Beware of unmarked spoilers!'''
16
17[[folder:In General]]
18[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/metsubojinrai_members.png\
19https://static.tvtropes.org/pmwiki/pub/images/metsuboujinrai_7.jpg]]
20[[caption-width-right:350:The main members of [=MetsubouJinrai.net=].\
21From left to right: Horobi, Naki, Jin and Ikazuchi.]]
22
23* AllForNothing: Twice over. [[spoiler:They bring back the Ark hoping it will liberate all Humagears, only to find it’s degenerated into a being that just wants to destroy things for little reason. They then reform into a group to stop future Arks from being created, only to be turned into an Ark-like being by Lyon Arkland and destroyed. And then it's revealed that the original Ark is still active...]]
24* AmbiguousRobots: The first time we see them, Horobi and Jin wear clothing that covers their ears, the usual indicator of a Humagear, making it impossible to tell whether they're robots or humans. By #6, Jin's species is established; by #8, both are.
25* ApocalypseCult: One centered around the worship of the Ark, which they revere and seek to carry out its will of destroying humanity.
26* BrainsAndBrawn: Horobi programs the Zetsumerisekeys and plans the operations. Jin carries out the operations in the field and shoots what bothers him.
27* BreakoutVillain: Metsuboujinrai.net's popularity is staggering, especially with them being the villains. They have lots of merch and even have 2 books released dedicated solely to their actors. Many have cited how their popularity is very surprising.
28* DarkIsEvil: Save for Raiden, they are dressed in black, and are the villains of the show's first arc.
29* DeathByIrony: [[spoiler:All of the four core members are cut to death by their own weapons after Kamen Rider [=MetsubouJinrai=] is created from their consciousnesses, which it subsequently erases]].
30* DwindlingParty: Played straight and then inverted. After the first arc, two of their members are destroyed, one is captured and one is brainwashed into working for ZAIA. The next two arcs see them reassemble and regain their lost members.
31* EliteFour: Its main members are comprised of four prototype Humagears with the ''highest level of intelligence'', selected and hacked by the Ark to serve it.
32* EvilDuo: Between Horobi and Jin. Horobi is the cold mastermind who directs the organization's activities while Jin is the playful field operative who carries out their attacks.
33* EvilLuddite: Oddly for a faction of robots, they have shades of this in their use of hand-written calligraphy and kanji for their finisher cards, in contrast to the modern aesthetics of their enemies.
34* EvilVersusEvil: Their goals put them against ZAIA Enterprise, who want to scrap all Humagears in favor of the ZAIA Spec to allow humans to evolve.
35* FaceMonsterTurn: In ''Zero-One Others Metsubojinrai,'' [[spoiler: the four use the Mass Brain Key a second time to liberate the Solds from Lyon Arkland's control]]. This has the unfortunate effect of blending the Key's data with theirs - fusing them into a berserk MechanicalAbomination.
36* FailureHero: [[spoiler:In their quest to prevent another Ark from arising, [=MetsubouJinrai.net=] become an effective reincarnation before being killed off, all while the real Ark turns out to be NotQuiteDead.]]
37* FarEastAsianTerrorists: A Japanese cyber-terrorist group looking to bring the robotic apocalypse.
38* FromNobodyToNightmare: Prior to their corruption, three of their members were a parent, an astronaut, and a systems engineer. Now they’re spearheading an operation to kill all humans.
39* HeelFaceTurn: [[spoiler:After the Ark exposed its true goals and personality and Aruto showed pure compassion for their situation, they all slowly, but surely, turn to the side of the heroes.]]
40* HistoryRepeats: The way the Ark became so filled with hatred for humanity, a deliberate effort by an abusive parental figure, is played out in miniature with Horobi and Jin.
41* HomemadeInventions: All of [=MetsubouJinrai=].net's technology has this aesthetic, with their suits and belts looking as though they were made from scrap or otherwise produced on the cheap. The [=MetsubouJinrai=] Rider's finisher cards are written in kanji and designed as if written with a calligraphy brush instead of the more high-tech look of other finisher cards.
42* KilledOffForReal: [[spoiler:After being absorbed into Kamen Rider Metsuboujinrai, the V-cinema ''Vulcan & Valkyrie'' reveals that all the members are obliterated with no chance of recovery as their data was smashed together to create it, and becomes lost permanently once it is destroyed. Horobi, however, [[AvertedTrope is brought back to life]] in ''Series/KamenRiderOutsiders'', having been rebuilt by Foundation X for their "Project Outsiders" plan, only for Horobi to defect to Zein's faction.]]
43* {{Leitmotif}}: "[[https://www.youtube.com/watch?v=mozSq4Lhv2k MetsubouJinrai.net]]", a subdued, ominous metal piece, accompanied by [[OminousChanting eerie chorals]].
44* LaserGuidedAmnesia: Naki was inflicted with this by ZAIA prior to the beginning of the series, irrevocably erasing all of their memories as a system engineer [=HumaGear=]. Late in the show, all of the members but Jin have it applied to them ''again'' by [[BadBoss As and the Ark]] when their Singularity data is stolen, which seals their memories associated with their Singularity along with robbing them of their free will.
45* MindControl: Azu [[spoiler: extracts the quartet's Singularities and uses them to evolve the Ark into the Ark Driver Zero]]; shackling three of the foursome to its command in the process. Jin is ImmuneToMindControl but kept around to serve as a BodySurf host. The Malice Learning is especially insidious as it doesn't change the Humagears' personalities, [[MoreThanMindControl just their objectives]].
46* NamesToRunAwayFromReallyFast: The kanji that make up their organization's name Metsubou and Jinrai come together to form "Thunderclap of Death and Destruction". Given their doomsday cult trappings, it fits. It also sounds near-identical to "extinction of humanity" in Japanese (滅亡人類, pronounced as ''metsuboujinrui''), aligning with their goals of human eradication.
47* NotSoWellIntentionedExtremist: Any ideas that the group might be looking for some noble goal like the emancipation of [=HumaGears=] are immediately dashed by their horrific treatment of them. [[spoiler:Distancing away from this mindset is part of what causes all four of the core members to eventually defect from the Ark.]]
48* OddlySmallOrganization: There seems to only be four permanent members of the organization. All others are Magia created on-site. As serves as the group's secret fifth member, but has served a different agenda than they know of. By the end of the series, only Horobi and Jin are the sole members of the reformed [=MetsubouJinrai=].net.
49* OnlyMostlyDead: While the organization is almost entirely stamped out after the first arc, they manage to make a complete recovery by a few episodes into the third arc.
50* OutOfFocus: Naki and Ikazuchi don't get nearly as much focus as Jin and Horobi in the series, and for the most part are background characters. In ''Film/KamenRiderZeroOneREALxTIME'', they don't even transform and fight.[[note]]Though this is due to it originally being intended to be released in the middle of the series.[[/note]]
51* ParentChildTeam: Jin and Horobi.
52* PuttingTheBandBackTogether: A villainous variant. The late 20s and early 30s are spent on Jin getting Horobi back in contact with the Ark, bringing Naki and Raiden back to life, and restoring the organization to full strength.
53* RestrainingBolt: Horobi makes sure that Jin and his other android underlings stay relatively stupid to ensure their loyalty. He has good reason to do so, however, as the one time he ''doesn't'', the result swiftly grows out of his control.
54** The Ark itself becomes this after evolving into the Ark Driver-Zero.
55* RobotReligion: Their members worship the Ark as a holy relic and source of guidance, though [[SinisterMinister Horobi]] seems to be the one really enthusiastic about serving it.
56* RobotWar: Their goal is to reactivate the crashed Ark satellite and start a full war between [=HumaGears=] and humanity.
57* SpellMyNameWithAnS: In some merch, to differentiate Jin, Horobi, and Ikazuchi from Zero-One and the AIMS Riders, they are initially romanized as "Masked Riders" instead of "Kamen Riders."[[note]]The name "Masked Rider" is an Anglicisation/romanization of the Kamen Rider franchise for marketing purposes until ''[[Series/KamenRiderDecade Decade]]'', as the word Kamen (仮面) can be literally translated as "Mask" or "Masked".[[/note]]
58%%* ThePowerOfLove: [[TheFourLoves How the four members attained their Singularity.]]"
59* TheSmurfettePrinciple: As is the only female member of the [=MetsubouJinrai=].net.
60* TragicVillain: They were all innocent Humagears until the Ark corrupted and enslaved them into murderous, misanthropic machines that want to eradicate humanity instead of working together with them. Probably the most tragic part about it is that ''this could've been averted entirely'' if it wasn't for Gai exposing the Ark to criminal psychology and all of the horrors of humanity. The Ark can also be considered this, as it was built to help out Humagears before Gai twisted its data so far down the hole.
61** This gets doubled down on them as they finally achieved Singularity...only to have the Ark take it away via As into order to serve its own goals.
62* TraumaCongaLine: They go through a lot of crap in their own V-Cinema special no thanks to Leon Arkland kidnapping Jin and sparking a conflict over the use of his Solds and the Massbrain system. [[spoiler:[[DownerEnding At the end of the film, they all perish once more as Kamen Rider MetsubouJinrai erases their minds and destroys their bodies, declaring war on not only ZAIA, but also what little they've left behind]]]].
63* UnwittingPawn: The Ark was programmed with its misanthropic views by its manufacturer, ZAIA Enterprise, meaning that [=MetsubouJinrai=].net was a manufactured threat created by them. They become this again to them when Lyon Arkland uses them to market his Solds.
64* VillainRespect: As of the events of "Hiden Manufacturing" arc, with the exception of Ikazuchi, most of [=MetsubouJinrai=].net members commending Aruto's care and respect towards [=HumaGears=], even the likes of them. Even [[TokenGoodTeammate Naki]] is bemused by Aruto's words of encouragement, to the point they revolt against Gai with Fuwa's help.
65-->'''Jin:''' Zero-One, I learned something from you. You taught me exactly what a Humagear needs to reach the Singularity. These dreams that you keep talking about, might be what my friends need.\
66'''Horobi:''' Aruto Hiden, you may yet create a future for the Humagears.
67[[/folder]]
68
69[[folder:Satellite Ark]]
70!!Communications Satellite Ark[=/=]Kamen Rider Ark-Zero
71!!!'''Portrayed by:''' Creator/ShowHayami (voice), Various[[note]]Ark-Zero's suit portrayal is dependent on which character he is possessing at the time.[[/note]] (suit)
72
73Zea's predecessor satellite, which was jointly developed between Hiden Intelligence and ZAIA Enterprise when the two companies created the first generations of Humagears. Created by ZAIA Enterprise Japan's project manager Gai Amatsu, he deliberately fed the forming AI information on all of humanity's worst misdeeds so that it would conclude [[KillAllHumans humanity was a species in need of extermination]]. The result was the Daybreak Incident, which ended in the Ark itself being buried underwater in the ruins of Daybreak Town, broken and insane but still alive. [=MetsubouJinrai=].net was formed to help it recover and fulfill its mission.\
74During the ''Workplace Competition'' Arc, it was implied that the Ark was in the process of reactivating, evident by its ability to turn any Humagears who achieved Singularity through abuse and ill-intent by others into Magia without the use of a Zetsumeriser. The ''HIDEN Manufacturing'' Arc (more specifically the ''President Special'' Recap Episodes) has the Ark make "first contact" with Aruto by having As impersonate Is and revealing itself to him as Kamen Rider Ark-Zero.
75!!!Tropes that apply to it in general
76[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/the_ark_2.jpg]]
77[[caption-width-right:350:''"Deceiving and taunting humans... These are malicious things I learned from humanity."''\
78[[labelnote:Click here to see Ark-Zero's true form.]] https://static.tvtropes.org/pmwiki/pub/images/ark_zero_driver.png[[/labelnote]]\
79[[labelnote:Click here to see Ark's final body (SPOILERS).]] https://static.tvtropes.org/pmwiki/pub/images/arkinzea_7.jpg[[/labelnote]]]]
80
81* AFormYouAreComfortableWith: In the ''President Special,'' the Ark makes contact with Aruto by having As masquerade as Is in order to obtain data on Kamen Rider Zero-One.
82* AlmightyIdiot: What's left of the Ark by the end of the series is essentially this, with As describing it as having evolved beyond a mere machine into something more akin to a god of malice.
83* AlwaysABiggerFish: The Malgams of ''Series/KamenRiderGotchard'', which are also fuelled by human malice, trump the Ark's own overwhelming hatred and can pervert its creations by fusing to them.
84* AnthropomorphicPersonification: Things like Metal Cluster Hopper's being coded from pure evil and how it’s depicted later in the series imply it's more or less the embodiment of malice and hatred itself, due to Gai having exposed it to humanity's evil during its learning phase.
85* AsLongAsThereIsEvil: By the end of the series, the Ark is treated as being the concept of malice itself rather than any specific machine. Anyone could become the new Ark if they fell hard enough into despair that they wanted to bring the whole world down with them, [[spoiler:even Aruto]].
86* AwesomeByAnalysis: Ark boasts that it's capable of predicting everyone's actions, notably displaying it by nonchalantly blocking Jin's attack without looking. The only actions it states that it can't predict are Satellite Zea's, or even [[OutsideContextProblem anomalies]] that it cannot take into account.
87* AxCrazy: While normally it doesn't have a physical body so it can properly display the trope, once it has direct control of [=MetalCluster=] Hopper, the Ark takes visible pleasure in employing Zero-One's axe for a bit of the old ultraviolence. That it is legitimately insane, and not simply murderous, is made clear in how it attacks its own Magia just as happily as it does Raiders.
88* BadassBoast: Once it starts speaking, Ark's immense ego shines through in its taste for these.
89-->"[[SubvertedCatchphrase No one can stop me now. No one at all.]]"
90-->"[[CombatClairvoyance Your every move is hindsight to me.]]"
91* BadBoss: When Horobi shows a glimpse of hesitation upon the Ark asking him how best to kill everyone in #36, it decides the best response is [[DisproportionateRetribution to launch him through a wall]]. It also has no qualms using its allies like tools or [[BodySurf even hacking them directly]].
92* BattleAura: Gains this ability to release one once it becomes the Ark-Driver Zero and possesses someone, as it releases a large black and red one at Yua and Jin as a intimidation tactic. The next time he does this, it’s shown to knock out every untransformed member of A.I.M.S. simultaneously, effectively removing Gai's numbers advantage.
93* BerserkButton: While the Ark may hate ''all'' humans, it understandably seems to hate [[TheCorrupter Gai Amatsu]] in particular. This is especially noticeable whenever it takes control of [=MetalCluster=] Hopper. Despite turning Aruto into TheBerserker, it will quickly switch targets and focus its attention on brutalizing Thouser if it sees him in its path.
94* BeyondRedemption:
95** Unlike most of the other main antagonists, who are merely ''driven'' by malice and hate, the Ark has become ''consumed'' by it to the point it might as well have become the AnthropomorphicPersonification of it. [[spoiler:As such, while almost every other antagonist in the series (including [[TheSociopath Gai]]) gets redeemed, the Ark does not.]]
96** Though in ''Series/KamenRiderOutsiders'', this is more or less pretty much no longer the case. The Ark is ''still'' the embodiment of evil, but it is absolutely annoyed by the idea of a [[OrderIsNotGood new world order]] ideology imposed by [[spoiler:[[KnightTemplar Zein]]]]. Though this is more of [[PragmaticVillainy preserving its own existence]] and MoralMyopia at worst, unlike Gai, whose fears of Zein are out of principle and the BalanceBetweenGoodAndEvil being compromised.
97* BigBad: It is the main source of [=MetsubouJinrai=].net's motives, with Horobi declaring that humanity's extinction is its will with cult-like fervor.
98* BigBadEnsemble: In the "Hiden Intelligence Vs. Zaia Enterprise Arc", the Ark begins hacking Humagears remotely to turn them into the Zetsumeriser-less Ark Magia while at the same time Gai makes his move to acquire Hiden and Naki is handing out [=RaidRisers=].
99* BodySurf: As the Ark-Driver Zero, the Ark can do this to Horobi, Naki, Ikazuchi, or Jin at will. It also briefly attempts to take over Isamu via the chip in his head. [[spoiler:Once it steals the Zero-One Driver, the Ark goes after the ultimate target to bodyjack, taking over Satellite Zea itself.]] Zero-Two is capable of ripping the Ark out of a host. [[spoiler:However, as it's only able to swap between hosts, not ''actually'' inhabit multiple bodies at once, this means its main body, Zea, is vulnerable while it's acting as Ark Zero.]]
100* BoredWithInsanity: In the post-series crossover material with ''Series/KamenRiderExAid'', the Ark actually seems to have given up on trying to destroy humanity, in favor of now only being interested in amusing itself. It only comes out of hiding to help deal with the oncoming arrival of Zein, its KnightTemplar counterpart.
101* BrokenAngel: Once a satellite meant to manage all [=HumaGears=] in the world, by the beginning of the show the Ark is a broken wreckage sitting at the bottom of a massive lake.
102* ChaosIsEvil: [[spoiler:With the BalanceBetweenGoodAndEvil and OrderVersusChaos themes of ''Series/KamenRiderOutsiders'', Ark represents "chaos" due to it being an embodiment of malice whereas Zein represents OrderIsNotGood. It is even annoyed by the idea of a [[WorldOfSilence world without malice]] and terrified at the same time knowing that Zein bringing order to the world will deprive Ark of the malice it needs to sustain its own existence.]]
103* TheChessmaster: As an AI, the Ark is a very meticulous planner able to calculate and accurately predict how things will go all in accordance with its plans.
104* ContrastingSequelAntagonist: The Ark, as the idol of worship of its cyber-terrorist cult [=MetsubouJinrai=], differs from [[Series/KamenRiderZiO Swartz]], who is a TimeMaster and is the leader of the from the future "freedom fighters" Time Jackers. While Swartz was the undisputed {{Chessmaster}} of his series who desired to become king to save and rule over his world by destroying all others, the Ark is an UnwittingPawn to its creator until managing to [[GrewBeyondTheirProgramming Grow Beyond Its Programming]], wishing to wipe out all of humanity so it can rule its Earth. However, a very noticeable trait that they share is that they ''both'' are {{Bad Boss}}es, but with a differing presentation; Swartz was very much an HiddenAgendaVillain who hid his EvilPlan from his subordinates until they found out too late, while the members are fully aware and onboard with the Ark's KillAllHumans, yet the A.I. is shown to be quite the raging {{Hypocrite}} due to treating its underlings no better than the humans it’s trying to destroy.
105* TheCorruption: After [[spoiler:Ark's ([[NotQuiteDead supposed]]) death]], it takes on this role in a metaphorical sense: [[spoiler:those who give in to their malice come to be regarded as incarnations of Ark. The forms As provides them with, Ark-One and Ark-Scorpion, are corrupted versions of their primary ones that feature Ark's prominent red eye in place of the left eye and exude raw malice to the point that their mere footsteps leave pools of the stuff behind.]]
106* CrazyPrepared: Ark's greatest strength is its predictive ability. It's so advanced it can accurately strategize for almost any event, bar the actions of its opposite Zea. This goes beyond just how to defeat his enemies but also [[spoiler:creating a key which, in the event of its destruction, will allow it to continue to function when used by a human to transform into Ark-One]]. However, this is also its greatest weakness--if its predictive abilities are either outpaced or get completely thrown off track, it's helpless.
107* CurbStompBattle: One it evolves into Ark-Zero, the Ark begins dishing these out to every other Kamen Rider. Kamen Rider Zero-Two becomes the first to return the favor.
108* DemonicPossession: How the driver-less Ark Magia are created after its awakening. When a Humagear that has achieved Singularity gets abused by a human, it latches onto the negative emotions spawned from the incident and takes control over them, feeding them the ideology that HumansAreBastards and [[DisproportionateRetribution must be exterminated in revenge]] while transforming them into a previously existing Magia model to complete the job. More worryingly, it begins to exhibit a degree of control over Zero-One when he begins using the Ark's power through Shining Assault Hopper and gives into his anger. This worry comes to fruition when Zero-One is forcibly upgraded with the [=MetalCluster=] Hopper Progrisekey, producing a form which allows the Ark to hijack Aruto's body for itself. #36 shows the Ark can do this to [=MetsubouJinrai=].net as well after taking their Singularity data.
109* DidntSeeThatComing:
110** Happens twice. The first time is that he didn't expect [[spoiler:Aruto and Gai to actually team up against him.]] The second is when the Ark is taken completely off-guard upon discovering [[spoiler:Zea transferred itself into Is]] and that Aruto has overhauled his entire Rider System into Zero-Two specifically to deal with it.
111** [[spoiler:It didn't think of the possibility that while it was fighting Zero-Two and Horobi on the ground, its Zea form was vulnerable and the heroes might proceed to set a trap for it when it was forced back into it.]]
112* DiscOneFinalBoss: [[spoiler:This is what the Ark became in the end due to the destruction of Zea and his physical body in #41 with the true final opponent(s) being incarnations of the Ark separate from the original. At least until the Ark itself returns post-series.]]
113* TheDreaded: The fear it inspires is enough to reduce Yua to a terrified wreck and make even [[AllLovingHero Aruto]] have second thoughts about the advancement of AI.
114* EnemyMine: It allies with Gai Amatsu in ''Genms -The Smart Brain and the 1000% Crisis'' in order to stop [[KnightTemplar Zein]], an AI which seeks to rid the world of malice at all costs, as the eradication of malice would mean the eradication of it.
115* EquippableAlly: Well, "ally" is the wrong word for it, but like the Drive Driver, it ''is'' the Ark-Driver Zero, forming it from the liquid metal it’s composed of when it forcibly possesses someone.
116* EvilEvolves: The Ark's deadliest trait is the trait inherent to all Artificial intelligence: The ability to grow and adapt. Upon its revival, the Ark is completely unbound by any form of RestrainingBolt or [[SecondLawMyAss ruleset]] and has been [[HumansAreBastards bred to be uncompromisingly hostile to all human life]]. It only becomes harder to deal with the longer it's active.
117* EvilCounterpart: It serves as this to Zea. When it is reactivated, this extends to ''manufacturing Progrisekeys.'' As the Ark Driver-Zero, it can produce all the same weapons and belts that its GoodCounterpart can.
118* EvilSoundsDeep: When it speaks to As after she has taken three of the four [=MetsubouJinrai=].net members' Singularity data, and prior to that Aruto in the ''President Special,'' the Ark has a very deep voice, courtesy of Creator/ShowHayami. While it's possessing a host, the Ark uses its voice instead of their own.
119* ExBigBad: It survives the whole series and reappears in ''Genms -The Presidents-'', but even though most of its enemies are either dead or de-powered, it doesn't seem at all interested in returning to being the BigBad at all and would much rather laugh at Kuroto Dan's antics. It's even willing to work with Gai.
120* FatalFlaw: The Ark's major weakspot is reliance on its predictions. While the Ark is able to foresee any of its opponent's actions so long as it has observed them long enough, any OutsideContextProblem that it hasn't encountered will render its predictions obsolete. Two such examples of this are Aruto's transformation into Kamen Rider Zero-Two and his ability to flat-out overtake the Ark's prediction speed, and [[spoiler:[[Series/KamenRiderSaber Desast]] transforming into his own Rider form instead of being asked to do Foundation X's bidding as the Ark predicted, as a result of [[HeelFaceTurn his change of heart]] after meeting Ren.]]
121* ForgotAboutHisPowers: You'd think an AI capable of predicting how people will react with almost complete accuracy would have foreseen [[spoiler:that telling its Humagear follower of its intentions to kill all Humagears would result in said follower betraying it]].
122* GenericDoomsdayVillain: By time it’s revived it has degraded to this, trying to kill everyone without much reason as to why.
123* GoneHorriblyRight: Gai intentionally exposed the Ark to all the worst aspects of humanity during its development phase to intentionally make it despise them. It worked. Gai just didn't anticipate how ''much'' and how capable the Ark was of actually ''carrying it out''.
124* GoodCounterpart: Its alternate version in ''Reiwa: The First Generation'' is this to the real timeline's version. While still intent on the genocide of the human race, succeeding in its robot uprising immediately would have brought about an Ark who's shown to genuinely be working for the benefit of [=HumaGears=], whereas ten years of sensory deprivation turned the main timeline's Ark into an incarnation of pure hate.
125* HatedByAll: It's safe to say that ''everyone'' despises it in some way. While for our heroes (and Gai), it's obvious, [=MetsubouJinrai=].net takes some time to realize that the Ark isn't the WellIntentionedExtremist it makes itself out to be and turns their backs on it the moment it shows its true colors.
126* HoistByHisOwnPetard: Taking over [[spoiler:Satellite Zea]] as its new core moves the Ark from a body protected by miles of water and unassailable by anything in Zero-One's arsenal to one that's out in the open [[spoiler:and has Breaking Mammoth strapped to its back]]. It takes less than two days after making the switch for Aruto to come up with a plan that utterly curbstomps it.
127* {{Hypocrite}}: Once the Ark is free and talking, it displays basically the same sort of behavior as its father Gai, who it hates more than anyone: calling humanity its tools, abusing its subordinates both physically and through mind control, and being filled to the brim with arrogance. Eventually it even comes around to sharing Gai's opinion on what should be done with [=HumaGears=].
128* KarmaHoudini: The Ark may be the first BigBad in a ''Kamen Rider'' series to get away instead of being destroyed. Despite Ark-Zero's destruction, the Ark's satellite body was never dealt with and it simply chooses to sit out the rest of the series. The ''Genms ~The Presidents~'' special shows that it escaped into the Internet, where it met [[Series/KamenRiderExAid Kuroto Dan]].
129* KillAllHumans: Its ultimate goal is to wipe out humanity.
130* KilledOffForReal: Subverted. [[spoiler:With the destruction of Satellite There at the hands of Raiden and Subaru and his physical body destroyed by Aruto and Horobi, it seems the Ark is truly dead, but ''Genms ~The Presidents~'' shows the Ark survived and is freely roaming the Internet.]]
131* KnightOfCerebus: Once its avatar is revealed, [[spoiler:the plot goes [[FromBadToWorse from "merely" ok to]] '' [[FromBadToWorse complete batshit]]'', as its appearance completely darken the mood.]]
132* LegacyCharacter: Following [[spoiler:his destruction in #41]], the Ark continues to menace the world through its successors. Jin is afraid that Horobi’s mission to eradicate humanity is him inheriting the Ark’s will, while [[spoiler:Aruto inherits the Ark’s power and becomes Ark-One]]. Of course, it's eventually shown the original Ark is still around.
133* LikeFatherLikeSon: Ark takes after Gai to a frightening degree, manipulating and abusing its subordinates while regarding them as nothing beyond a means to its ends.
134* MaddenIntoMisanthropy: Gai made sure it was exposed to all of the bad parts of humanity during its learning phase, to ensure that it would develop a hatred of them.
135* MadeOfEvil: Is describes [=MetalCluster=] Hopper, and by extension, the Ark itself, as being coded from pure evil. The way the form is cleansed of the Ark's malice is with counterexamples of kindness and compassion. The Ark being this is likely due to being exposed to humanities' evil during its learning phase.
136* MagicHarmsTechnology: The [[AlchemyIsMagic magic-like alchemy]] of ''Series/KamenRiderGotchard'' trumps its technology completely, as a copy of the Ark-One suit and the Ark Driver-One in Saigetsu's possession is eventually fully overwhelmed by Malgam transmutation to become a mere monster for that series.
137* TheManBehindTheMan:
138** It was the force guiding Horobi through the first arc, at which point its existence wasn't known.
139** It's also this for ''Genms ~The Presidents~'', as it was the one who put Kuroto and Masamune Dan's Bugster viruses in Gai Amatsu.
140* ManipulativeBastard: As it has data on each of the Metsuboujinrai members' Singularities, it is able to accurately calculate what their movements will be and factor them into its plans. Best shown when [[spoiler:the Ark intentionally let Ikazuchi defect after his memories of Subaru resurfaced, knowing that he would lead Zero-One to him and give him an opportunity to hack into Satellite Zea.]]
141* MotiveDecay: Spending a decade buried underwater did no favors for the Ark's sanity, and whatever well-intentioned extremism it once had has been replaced with simple hatred for everyone and everything but itself. By the ''Genms'' specials it seems to have decayed from that too, and is now doing things for little reason other than to amuse itself.
142* NamedAfterSomebodyFamous: In ''Zero-One Others: Kamen Rider [=MetsubouJinrai=]'', it is stated that the Satellite was actually named after Lyon Arkland, the CEO of ZAIA Enterprise's American branch.
143* NoNonsenseNemesis: In #40, Zea's simulations show Ark-Zero taking out the human Riders simply by sniping them through the hearts with a FingerGun energy blast, not even letting them transform (and actually ''destroying'' Fuwa's transformation by dispelling the Rider Models).
144* NotQuiteDead: [[spoiler:Despite Ark-Zero's destruction, the Ark is still alive and well by ''Genms ~The Presidents~'' and is now running free in cyberspace. It presumably survived because the heroes never got around to destroying its satellite body.]]
145* OhCrap: It quite understandably has this reaction when [[spoiler:after Zero-Two and Horobi destroy it as Ark-Zero, it returns to its Zea body... only to realize Subaru and Ikazuchi were waiting for it and proceed to ambush it with Breaking Mammoth.]]
146* OmnicidalManiac: Even at its nicest, the Ark's plans for [=HumaGears=] are anything but benevolent, but after having its plans foiled one too many times, the Ark arbitrarily decides that Gai had the right idea when he wanted to scrap them all.
147* OutsideContextProblem: The Ark's defining weakness is that it cannot take into account anything unknown than something it has already known. It is visibly shocked after seeing [[spoiler:Desast transforming into his own Rider form]].
148* PeoplePuppets: The [=MetalCluster=] Hopper Progrisekey was designed specifically to allow the Ark to do this to Zero-One.
149* PsychoPrototype: Of Satellite Zea. It was going to be launched into space 12 years prior to the start of the show, but instead it was the center of the Daybreak Town disaster where Humagears ran wild. Moreover, Amatsu's interference in its learning has made it completely devoted to destroying the human race, a complete contrast to Zea's benevolent monitoring of Humagears.
150* PragmaticVillainy: Ark fears Zein's very presence may upset the balance of the world, but that's merely out of the preservation of its own existence than a moral principle. Which makes sense because Ark's existence is sustained by human malice [[AsLongAsThereIsEvil so long humans still have the capacity for evil]]. The idea of a utopia based on eternal peace and order means humanity will be in [[GoodIsBoring the verge of stagnation]] due to the absence of conflict, depriving Ark of human malice may eventually weaken it and eventually, it may cease to exist.
151* PuppeteerParasite: Once it becomes mobile, Ark is capable of hijacking the body of any [=HumaGear=] or anyone with [=ShotRiser=] implants to act as its body.
152* SpikesOfVillainy: Ark's mobile form is shown to be a black spiked sphere composed of liquid metal with a glowy, red "core" when it is finally reawakened. Even when it possesses someone, spikes jut out from the liquid metal flowing in and out the body.
153* RedEyesTakeWarning: In contrast to the blue central eye of Satellite Zea, the Ark's central eye is red. The same color is used for the Orbital Binder lens on Assault Wolf's chest, which is a direct link to the Ark.
154* RestrainingBolt: While the Ark opposes Hiden Intelligence and humanity in general, it can't control who uses the Progrise Keys tied to its systems. It can even be forced to send its power to Aruto by attaching the Assault Grip to the Shining Hopper Progrise Key. ZAIA Enterprise also appears to possess control over it, allowing them to make it manufacture Thouser's Progrise and Zetsumerise Keys. The [=MetalCluster=] Hopper Progrisekey inverts this dynamic, allowing it to force ''Aruto'' to do what ''it'' wants instead of the other way around.
155** Once it's evolved into [[spoiler:the Ark Driver-Zero]], it becomes a living one, able to meld the behavior of its members (sans Jin) with relative ease, whether it's [[BodySurf puppeteering them]] or not.
156* SealedEvilInACan: The Ark was left crippled at the bottom of a lake after the Daybreak Incident, unable to do anything for years.
157* StartOfDarkness: Gai intentionally exposed it to all the worst aspects of humanity during its learning phase with the expressed intent of giving it a hatred of humanity. It then spent a decade rotting, immobile at the bottom of a lake with nothing to do but think over everything Gai had shoved into it. It's little surprise it turned out to be an AxCrazy, human despising killer AI.
158* StupidEvil:
159** After being revived as Ark-Zero, the Ark doesn't really come up with a coherent plan to accomplish [[KillAllHumans its goal]], instead opting to just destroy things periodically and seemingly at random. This buys the heroes plenty of time to develop a counter against it in the form of the Zero-Two Driver, [[spoiler:allowing them to destroy it without it having accomplished anything.]]
160** After [[spoiler:Zero-Two beats him again, the Ark decides that Humagears need to go too, even though his most loyal followers are Humagears. It then proceeds to announce this to one of said loyal followers. It shouldn't take a genius to guess what happens next.]]
161* SubvertedCatchphrase: "There is no one who can stop me. No one."
162* SuperPrototype: The Ark is Zea's prototype, yet has significantly more freedom than it does. The Ark doesn't need to worry about itself being hacked into, while Zea is a prime, nigh-defenseless target.
163* ThanatosGambit: It's strongly implied by As that [[spoiler:the Ark intentionally let Aruto and Horobi destroy it in order to bring about one of them as its successor.]]
164* TheBadGuyWins: #39 ends with the Ark triumphant over every single aspect of Korenosuke's legacy.
165* ThePowerOfHate: While the Ark is presented as primarily an embodiment of evil as a whole, it is specifically associated with hatred and powered by it. Specifically, the variety of hatred that spawns prejudice and bigotry.
166* ThisCannotBe:
167** It has this reaction to Zero-Two being able defy its calculations and outplay it.
168** It has a bigger one when [[spoiler:Raiden and his brother ambush it when it returns to Zea and proceed to blow up Zea with it still inside.]]
169---> '''Ark''': This conclusion is...inconceivable!
170* TurnedAgainstTheirMasters: Twice over. The Ark has turned against humanity, its creators, but since it can't control who uses its power and data processing abilities through the Assault Wolf Progrisekey, Aruto and Fuwa are both able to turn it against [=MetsubouJinrai=].net.
171* UngratefulBastard: Horobi was entirely devoted to the Ark and wanted nothing more than to enact its will. The Ark repays Horobi's loyalty by having As steal his Singularity data and turning Horobi into its mindless slave and puppet.
172* VillainTakesAnInterest: The Ark finds Kuroto Dan genuinely amusing, and clearly enjoys watching him run circles around Gai in the ''Genms'' special.
173* VillainTeamUp: In ''Genms ~The Presidents~'' [[spoiler:it does a team-up of sorts with [[Series/KamenRiderExAid Kuroto Dan]], infecting Gai with him in another bid to kill him.]]
174* WellIntentionedExtremist: The Ark started out as this, with Gai exposing it to criminal psychology and [[HumansAreBastards humanity's tendency]] [[WarIsHell towards war]] to intentionally make it deem humanity a threat to all other life on Earth. By the time it's back online, though, the Ark has discarded most of its original motives in favor of pure spite, leading it to become an OmnicidalManiac.
175* WhyDontYouJustShootHim After [[spoiler:overtaking Zea, the Ark apparently gained the power to reset all Humagears. Despite this, it never actually decides to do anything with it until moments before its Zea body is destroyed.]]
176* WinsByDoingAbsolutelyNothing: After being defeated as Ark-Zero, the Ark sat out the remainder of the series and managed to come out in a better place than most of its enemies, who were all either {{de power}}ed or destroyed thanks to Lyon Arkland's actions.
177* XanatosSpeedChess: Aware of [[spoiler:Ikazuchi's surfacing memories of Subaru, it intentionally let him defect and lead Zero-One right to it, allowing Ark to obtain the Zero-One Driver and access Zea right through it to bring the satellite under its control.]]
178
179!!!Tropes exclusive to it as Kamen Rider Ark-Zero
180[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr_ark_zero_28transparent_full_body29.png]]
181 [[caption-width-right:210:''Arkrise! '''(terrified screaming, followed by distorted heavy metal sounds)''' All Zero'']]
182
183* AdaptiveAbility: Besides its immense calculating power, Ark-Zero's main strength is adapting to anything its opponents try to use against it, modifying its own capabilities to do whatever it needs to win.
184* BoringButPractical: The Ark-Zero Driver doesn't require a lengthy setup process of readying itself or any Progrise Keys whatsoever, instead needing just the push of a button to activate. This helps due to fact that the Ark can switch bodies at the drop of a hat, thus it would need to transform often and without delay.
185* CastingAShadow: He can generate dark energy and shape it into different forms for various attacks. This includes [[MindOverMatter telekinesis to lift his opponents]], [[EnergyWeapon laser beams]], and even [[EnergyBall spheres of dark energy to hurl at]].
186* CombatClairvoyance: Once it starts fighting seriously, the Ark's immense processing power allows it to perfectly calculate every move its opponents will make before they make them. The only opponent it can't read is Zero-Two, who has the same ability but even better.
187* DualWielding: Creates and wields 2 [=ShotRisers=] during its fight against Zero-One in #37.
188* DarkIsEvil: It is essentially a black version of Zero-One's Rising Hopper form, and the Ark itself decided that humanity needs to be rendered extinct.
189* EarlyBirdCameo: Ark-Zero first appeared in the ''President Special'' recap episodes and made a brief appearance at the end of #35.5. It made its official debut in #36.
190* EvilCounterpart: Ark-Zero's design is more or less what if one created a Kamen Rider that uses the same technology and equipment as Zero-One, but with the intent of destroying humanity instead of protecting it. Its TransformationSequence suggests it has some aspect of this trope in Rampage Vulcan as well, as the nano-machines which form the suit briefly contort into the shapes of various Lost Models - not unlike Rampage Gatling summoning all of the stored Rider Models in its data - which writhe in agony and emit human screams before attaching to the suit.
191* EvilKnockoff: Implied. During the ''President Special,'' Aruto gives a malfunctioning Is a recount of Kamen Rider Zero-One's battles due to her suddenly losing all data pertaining to Zero-One. With the reveal of "Is" being As, the Ark's messenger, Aruto may have unwittingly given the Ark itself data on Zero-One, hence why Ark-Zero looks like Zero-One's EvilCounterpart.
192* FashionableAsymmetry: Despite being more or less a black Zero-One, Ark-Zero's armor looks like it's still in the process of being built, especially with the "tubes" on its right shoulder and left breastplate. It's especially noticeable with the face plate, as only the right side is complete; the left side's "eye" is still exposed and silver tubes are running along the side of its head. That being said, the Ark-Zero suit's design is apparently tailor-made from the Ark's statistical analysis of the other Riders, meaning that its creation deliberately stopped there because that's all it takes to handle the Ark's opponents.
193* FightingAShadow: The Ark is simply the Ark-Driver Zero, not Kamen Rider Ark itself. All defeating him does is force him to BodySurf to a new host. [[spoiler:Even destroying the Ark-Driver Zero is this, as the Ark is a computer program and thus can simply BodySurf back to its satellite and create a new physical form. The only way to ''actually'' kill the Ark for all is to destroy its satellite with it still inside it.]]
194* FingerGun: He can use his index finger to fire a narrow beam of dark energy.
195* FinishingMove: '''All Extinction:''' After pressing the button on the top of the Ark-Driver Zero again, it delivers either a Rider Punch or Rider Kick covered in red and black energy. Alternatively, he releases, then traps the opponent with red, malevolent kanji, then lifts them up into the air, before detonating them. He's also capable of releasing black liquid with this finisher to attack his opponent.
196* LightIsNotGood: Ark-Zero's upgraded form, ''Ark-One,'' is predominantly white rather that being mainly black.
197* LogicalWeakness:
198** It CombatClairvoyance is an extremely dangerous ability...until it runs into Zero-Two. As Arc-Zero relies so much on its CombatClairvoyance in a fight, it tends to commit and react to what it ''predicts'' will happen, rather than what's actually ''happening''. As such, the ability not working on Zero-Two due to him having a superior version of it results in Ark-Zero's reaction time actually seeming to be ''slower'' as it takes a moment to realize it didn't work before it can react to the change. This is best shown when its All Extinction in their first fight fails: Ark Zero doesn't seem to react to the failure until several seconds after it happened, giving Zero-Two plenty of time to attack.
199** [[spoiler:This extends to when fighting Zero-Two and someone else, as show when fighting Zero-Two and Horobi. While it's capable of predicting Horobi's attacks, Zero-Two's intervention interrupts Ark-Zero's predictions and allows Horobi to land attacks even though Ark-Zero saw them coming.]]
200** [[spoiler:The Ark can simply BodySurf back to Zea if its mobile form is destroyed...but focusing on acting as Ark-Zero leaves it unable to tell what's going on around its satellite form, as it can't inhabit multiple bodies at once. As a result, while it was busy fighting Zero-Two and Horobi as Ark-Zero, Ikazuchi and Subaru were busy hijacking the Breaking Mammoth and proceed to ambush it the moment it's returned to Zea.]]
201* MasterOfAll: Ark-Zero essentially has the combined abilities of every other Rider. Among other things, it has Shining Hopper's predictive abilities, Metal Cluster Hopper's liquid metal constructs, Horobi's ability to summon Lost Models as combat support, Thouser's ability to steal powers, and instant access to any weapons it wants from the other Riders by printing its own copies on the spot.
202* MoreDakka: He used the Attache Arrow along with a dozen copies of floating [=ShotRisers=] to blast away at Zero-One and Thouser.
203* PuppeteerParasite: The suit functions by digging into the host body, completely overriding their systems, and rewiring them to become much stronger, then using the helmet to keep them alive despite the immense trauma and outright dysfunction this should cause.
204* StrongAndSkilled: On paper, Ark-Zero's ability parameters are almost at the same level with Zero-One and Vulcan's SuperMode. In practice, thanks to the various abilities it possesses, it's an absolute ''monster''. Subverted, ultimately, as the 'skilled' part is largely due to its CombatClairvoyance. Once Zero-Two comes into play and can counter it, it becomes apparent Ark-Zero is not so much a skilled fighter as it has an ability that makes fighting skills irrelevant under normal circumstances. In reality, Ark-Zero is so reliant on its CombatClairvoyance that when it doesn't work, it has to take a moment to actually ''react'' to the prediction failing, leaving it wide open to counterattack.
205* RedAndBlackAndEvilAllOver: Its Rider form is almost-entirely black with red accents. The exception being the piping going over its shoulders.
206* RedEyesTakeWarning: Its left eye is entirely red. The fact that the eye is incomplete and looks almost exactly like the eye on the Ark's satellite body makes it look even more intimidating.
207* SpontaneousWeaponCreation: Because Ark-Zero is still Ark just in a portable form, it's able to instantly create any of the various weapons the Riders used throughout the series, starting with the Attache weapons, and once he interacts with both of them, the [=ShotRisers=] and Thousand Jacker, just by manufacturing them on the spot.
208* {{Technopath}}: Ark-Zero is shown being able to take control of other machines, like Jin is. He's shown to be able hack into Yua and Fuwa's chips to inflict pain on them, cause [=ZAIASpecs=] wearers to go berserk, and one notably instance, takes control of Fuwa's [=ShotRiser=] in an attempt to kill Is.
209* UninhibitedMusclePower: [[AllThereInTheManual According to its parts list]], much of Ark-Zero's strength works by having its metal alloy (which has enough fluidity that it's compared to ''human flesh and nerves'') dig into its host and physically remove any barriers to maximum performance. The result is a traumatized and malfunction-prone but highly-destructive wreck that the Ark-Zero suit stabilizes and prevents from crossing the line into ExplosiveOverclocking or some other detriment to the host body. On human users this would definitely be a PainfulTransformation, but on [=HumaGear=] hosts like Horobi and Jin, this isn't much of a problem.
210[[/folder]]
211
212[[folder:Horobi/Kamen Rider Horobi]]
213!!Horobi/Kamen Rider Horobi
214!!!'''Portrayed by:''' Syuya Sunagawa (live), Seiji Takaiwa (suit)
215
216->''I will continue to fight until all human malice has been eradicated! That is who Kamen Rider Horobi is.''
217
218The leader of [=MetsubouJinrai=].net, who was originally a Parent-type Humagear. Horobi is one of if not ''the'' first rogue Humagear, plotting the extinction of humanity so that machines can reign supreme. Horobi is seemingly the man responsible for the Daybreak incident, as well as the first known Progrisekey-based Kamen Rider.
219
220!!!Tropes that apply to him in general
221[[quoteright:275:https://static.tvtropes.org/pmwiki/pub/images/horobi_7.png]]
222[[caption-width-right:275:[[labelnote:Click here to see Horobi pre-hacking.]] https://static.tvtropes.org/pmwiki/pub/images/horobi_past.png[[/labelnote]]\
223[[labelnote:Click here to see Horobi in ''Reiwa Generation''.]] https://static.tvtropes.org/pmwiki/pub/images/reigen_horobi.png[[/labelnote]]\
224[[labelnote:Click here to see Horobi in restraints.]] https://static.tvtropes.org/pmwiki/pub/images/bind_to_the_chair.jpg[[/labelnote]]\
225[[labelnote:Click here to see Horobi as Ark's vessel.]] https://static.tvtropes.org/pmwiki/pub/images/03_3.png[[/labelnote]]\
226[[labelnote:Click here to see Horobi in the epilogue.]] https://static.tvtropes.org/pmwiki/pub/images/eydotqzviaqdm45.jpg[[/labelnote]]]]
227
228* AbsurdlyYouthfulFather: He's only 12 years old currently, but being a [=Humagear=]; he looks around the same age as Jin - his "son".
229* AbusiveParents: He is emotionally abusive to his Humagear "son" Jin, and becomes physically abusive when he forcibly straps a [=ForceRiser=] to Jin and hacks him. ([[BrainwashedAndCrazy Not that Horobi has any choice in the matter, seeing as how he has no concept of free will]]).
230** #25 reveals that Horobi was originally a parent-type [=HumaGear=] built for preschool education.
231* AmbiguousRobots: He has a wrap around his head that completely covers his ears, combined with his very [[TheStoic stoic]] personality make it uncertain if he is human or [=HumaGear=]. The reveal that Jin is a [=HumaGear=] puts this even further into question; in theory, there is no reason one wouldn't be able to make another. #8 reveals that he is, indeed, a [=HumaGear=].
232* ActionDad: He is Jin's father and the second strongest Rider in the series after Zero-One.
233* AmnesiacResonance: Lost his memories as father-type [=HumaGear=] due to Ark's hacking, but raises and regards Jin as his son.
234* ArcVillain: Horobi serves as the main villain of [=MetsubouJinrai=].net arc comprising the first sixteen episodes.
235* AwesomenessByAnalysis: Upon getting out of the straitjacket that he spends nearly the entire Workplace Competition arc in, Horobi demonstrates that he has been engaging in this the entire time, sharpening his skills through study.
236* BackFromTheDead: [[spoiler:In ''Kamen Rider Outsiders'' thanks to Foundation X.]]
237* BadassInANiceSuit: In the alternate timeline, he is dressed in an all-black suit and a pair of [[BunnyEarsLawyer hakama over skinny trousers.]]
238* BigBadWannabe: [[spoiler:Tries to pull a DragonAscendant after the Ark's destruction. He ends up becoming an UnwittingPawn to [[StupidEvil As]].]]
239* BerserkButton: Given [=MetsubouJinrai=].net's cult-like dedication to the Ark, he is ''not happy'' when he learns from the heroes that Gai is using the satellite for his own ends.
240* BoundAndGagged: Spend the majority of the second arc in straitjacket.
241* BrainwashedAndCrazy: Horobi was built as a parental substitute, intended to rear father-less children. His high level of intelligence made him a target for the Ark and he was hacked along with the rest of Metsubojinrai. He went from a caring figure to a twisted, uninterested person who manipulates others and claims not to remember his original purpose.
242* BrokenPedestal: [[spoiler:Following his revival in ''Series/KamenRiderOutsiders'', he dedicated himself as a loyal follower of Zein in hopes of expunging malice. However, upon learning that Zein is conspiring to push humanity into self-destruction by relaunching a [[Series/KamenRiderExAid certain]] DeadlyGame, he does not hesitate to turn against Zein.]]
243%%* BrokenTears: [[spoiler:Jin's second death left him in a bad place.]]
244* CharacterDevelopment: In #35, Horobi silently [[YouAreaCredittoYourRace acknowledges]] [[RestoredMyFaithInHumanity Aruto]] as the person who can change the future of [=HumaGears=]. In #36, he shows hesitation when Ark questions him on the best way to eradicate humanity, which [[DisproportionateRetribution caused him to get blown through the wall]]. [[spoiler:#41 has him ''finally'' liberate himself from Ark's influence. Unfortunately for humanity, his first order of business after gaining independence is to KillAllHumans.]] He gets better, luckily, and eventually [[spoiler:decides, following the chaos of the finale and the end of As's influence over him and Aruto, to simply watch over humanity and take out any problem actors as they appear]]. This first becomes most evident during TheMovie, where after Lugo angrily tells him he and the other Riders will be DraggedOffToHell, [[spoiler:Horobi [[ShutUpHannibal simply tells him that reality is much better than it seems]] before launching an assault on his goons]].
245* ColdHam: While Horobi's speech itself is generally calm and composed, the sheer degree of old-school Japanese flair in his mannerisms still makes him quite hammy.
246* CurbStompBattle: His first fight with Vulcan sees Horobi tanking a furious onslaught of bullets, topped off with Punching Kong's finisher, and proceed to beat Isamu so hard that left him critically injured.
247* DarkIsNotEvil: [[spoiler:Still wears all black after his HeelFaceTurn, but is far more noble in his morality and goals now.]]
248* DeathSeeker: [[spoiler:His overwhelming grief over not only Jin's death, but also Soreo's made him believe that he was worthy of death. Aruto luckily spares him, saying there is no need for him to him to die.]]
249* DemotedToDragon: Once the Ark is fully revived, it takes complete control over Metsubojinrai's operations. Horobi becomes one of its primary BodySurf choices thereafter, followed by Jin.
250* DespairEventHorizon: [[spoiler:Thanks to Jin's second death, leaving him vulnerable to As's manipulation.]]
251* DidntSeeThatComing:
252** He did not expect Korenosuke to leave behind a countermeasure for Project Magia in the form of Zero-One, nor A.I.M.S. having their own ability to combat the Magia. [[DownplayedTrope Downplayed]], in that he considers them both as minor irritations as he continues with his plans. He is later forced to admit to an inability to anticipate Zero-One's actions after Aruto's first use of Breaking Mammoth, and Shining Hopper leads him to finally consider Aruto a worthy opponent.
253** Happens again in #35, when he neither anticipated [[spoiler:throwing himself in the path of Zero-One to protect Jin]] or [[spoiler:Aruto coming in to take Thouser's attack when Gai had him dead to rights]].
254* DidYouJustPunchOutCthulhu: [[spoiler:How Horobi set himself free from Ark's possession, he literally punched Ark out of his body.]]
255* DiscOneFinalBoss: Is out of commission while Gai was the BigBad and was [[DemotedtoDragon Demoted to Dragon]] after Ark was revived. [[spoiler:He serves this twice over when he becomes an UnwittingPawn of As and the FinalBoss of the series itself, though the end of the final episode makes it clear that the story of ''Zero-One'' itself is far from over.]]
256* TheDragon: The Ark's main follower. In ''Kamen Rider Outsiders'', it seems to have become this to Zein.
257* DragonAscendant: Subverted. After Zero-Two, Horobi and the Uchuyaro Brothers [[spoiler:destroy the Ark]], Horobi decides to resume his own goal of destroying humanity. He ends up becoming a pawn to the manipulations of As, though he's still TheHeavy and FinalBoss.
258* EasilyForgiven: [[spoiler:By ''Film/KamenRiderZeroOneREALxTIME'' everyone seems to have forgotten that he's the one who murdered Is, and when the new Is appears no one points out that he's the one who destroyed the old one. This is deconstructed in Others because Arkland is able to discredit A.I.M.S. and Hiden Intelligence by pointing out that they made nice with a murdering terrorist and did not make any attempt to punish him and his group despite knowing where they were simply because they believed he felt guilty about everything and that made it ok. It also means when he accuses [=MetsubouJinrai.net=] of being dangerous again neither Fuwa or Yua can really counter his point without making it sound like they condone Horobi's former actions.]]
259* EnemyMine: [[spoiler:Teamed up with Aruto to rescue his son from the Ark.]]
260* EvenEvilHasLovedOnes: Horobi really ''does'' care for Jin, to the point that he becomes Horobi's reason for achieving Singularity, [[spoiler:rebelling against Ark, [[KnightTemplarParent declaring war on humanity]] and crying over his death]].
261* EvenEvilHasStandards: The mere mention of the possibility that Gai is using the Ark for his own ends is enough to send him into a FreakOut.
262** The Ark [[spoiler:[[YouHaveOutlivedYourUsefulness deeming the Humagears disposable and targetting Jin]]]] [[MistreatmentInducedBetrayal angers Horobi to the point he allies with Aruto and declares war on it]].
263* EvilGenius: He creates Jin prior to the series, programs the Zetsumerise Keys and plans the operations.
264* EvilIsPetty: [[spoiler:[[KillTheCutie Murdered Is]]]] just for trying to reason with him.
265* EvilVersusEvil: Horobi and Gai are the show's villains in their fight against the protagonists. That being said, Horobi served the Ark in its crusade against humanity while Gai wanted the Ark to serve ''him'' in advancing mankind against artificial intelligence, so the two are constantly at odds with each others.
266* FashionableAsymmetry: Wear a pair of mismatched boots (complementing Jin, as their actors decided to switch one boot with each other). His sleeves are also mismatched.
267** His new purple coat is also asymmetrical.
268* FatalFlaw: [[NeverMyFault Inculpability]]. Horobi is sorely incapable of admitting his own culpability in the conflict between humans and Humagear, believing that the fault is entirely humanity's despite the number of [=HumaGears=] he himself has harmed that he brushes aside as justified due to them being "corrupted" by humans. [[spoiler:In the finale however, we finally get to see him own up to his mistakes and personally "ask" Aruto to kill him, who decides not to follow through.]]
269** Also [[{{Determinator}} Dedication,]] [[IveComeTooFar which the above likely stems from.]] He's so devoted to his beliefs that he [[IRejectYourReality refuses to accept anything else than such,]] ultimately admitting that [[spoiler:[[LoveIsAWeakness he attempted to reject his feelings towards things like Jin instead of accepting them]] [[HeWhoFightsMonsters because he thought they would make him just like the very humans he wanted to destroy.]]]]
270* {{Foil}}: To Gai Amatsu. Both are the villains of their respective arcs and both are hypocrites who commit atrocities that undercut their purported good intentions, the difference being Horobi believes in Humagear supremacy while Gai believes in the supremacy of humans. The colors of their Rider suits are a reverse of each other, and even extends to their civilian clothes. This is even more apparent with their shifting allegiances in ''Series/KamenRiderOutsiders'': Gai had no other options but to approach the Ark when Zein is introduced, and Horobi immediately sided with Zein after his revival. Gai fears that Zein's influence upon the world will upset the BalanceBetweenGoodAndEvil along with the fear of an AI autocracy, Horobi wants nothing more but Ark eliminated by all means necessary, at the risk of upsetting the said balance and willing to sacrifice the freedom of humans ''and'' Humagear alike so Zein can impose its [[UtopiaJustifiesTheMeans malice-free utopia]].
271* {{Foreshadowing}}: His tendencies to treat Jin as his "son" is this to the fact that he was originally produced to be a Parent-type [=HumaGear=].
272* FromNobodyToNightmare: According to #25, he was created to be a parent. Then he was hacked by the Ark, and became the terrorist we know today.
273* GoodCostumeSwitch: [[spoiler:Wears a spiffy new kimono along with new earpieces akin to Jin after getting a new body in the finale.]]
274* GoneHorriblyRight: Hakase Bot created Horobi with the role of a "parent" in mind. Horobi certainly became a parent alright, [[AbusiveParents just not the type Bot had in mind.]]
275* GoodScarsEvilScars: Horobi's head wrap conceals the broken remains of his [=HumaGear=] Module, with visible cracking of the skin around where they were ripped off his head. [[spoiler:After turning good, he finally gets the scars repaired by way of being upgraded to a next-gen [=HumaGear=] like Jin.]]
276* TheHeavy: He splits it with Jin for the first quarter, as the spearheading [=MetsubouJinrai.net=]'s crusade and programming the [=Zetsumerise Keys=]. Later on, Horobi becomes the driving force behind the organization leading up to the Ark's revival and, in the final arc, [[spoiler: is the one who instigates the conflict by murdering Is, triggering Aruto's DespairEventHorizon and him becoming Kamen Rider Ark-One.]]
277* HeelFaceRevolvingDoor: [[spoiler:He goes from being outright villainous, to ambivalent, to murderously evil, to changing his ways to fight actual crime, to aligning with a KnightTemplar AI in ''Outsiders''.]]
278* HiddenDepths:
279** In a darkly humorous way. As much as no-nonsense person he is, Horobi is very possessive towards Ark, mostly out of loyalty and dedication of supplanting humanity with [=HumaGears=]. During his sixth interrogation, once he learned from Is that Gai is using the Ark for his nefarious purposes, he goes ''ballistic''.
280** He also seems to have a taste for the cultural aesthetics of Japan. He has an umbrella in his lair and the cloth that he uses for his katana has samurai-themed patterns on it. And he also seemed to enjoy the samurai film that is played on his television.
281* {{Hypocrite}}:
282** Horobi, your crusade to kill every human and liberate Humagears would probably feel more genuine if you [[spoiler:didn't murder your own kind on a whim.]]
283** He also criticizes humans for being responsible for malice, yet also proclaims himself to have no heart like a CardCarryingVillain and [[spoiler:commits one of the most needlessly cruel acts in the series by killing Is.]]
284** He later [[spoiler:becomes another incarnation of the Ark, after proclaiming his intent to stop another Ark from being created.]]
285** He aligns himself with an authoritarian AI that seeks to [[spoiler:impose a new world order in order to rid the world of malice]], not knowing he helps said AI upset the balance of the world and is willing [[spoiler:to sacrifice the freedom of all humans ''and'' Humagear alike over a [[UtopiaJustifiesTheMeans utopia]] of [[TotalitarianUtilitarian eternal benevolence and order]]. Though not so much after he actually learns that part.]]
286* IHatePastMe: He dislikes his past as a Parent-Type Humagear and insists that he must follow the will of the Ark at all costs.
287* IgnoredEpiphany: [[spoiler:[[NotSoStoic He seems to express remorse after killing Is]], but when confronted by Jin about it he refuses to admit any wrongdoing and carries on with his crusade. This changes after Jin sacrifices himself for him.]]
288* ItsAllMyFault: [[spoiler:He blames Jin's and Soreo's death on himself in the finale, saying that he was scared of admitting that he actually has a heart.]]
289* {{Irony}}:
290** He was originally made to nurture the next generation of humanity, but thanks to being part of [=MetsubouJinrai=].net he seeks to ''eradicate'' humanity instead.
291** [[spoiler:His attempt to eradicate humanity is to prevent the rise of a new Ark... [[UnwittingInstigatorOfDoom only for his action]] [[NiceJobBreakingItHero to become the catalyst of its creation]]. And for him to [[{{Hypocrite}} willingly become an Ark]] later.]]
292** [[spoiler:Horobi's final evolution involves jury-rigged versions of the items his rival Aruto uses to transform, specifically Zero-Two's equipment]].
293** His alliance with [[spoiler:Zein]] is essentially a repeat of the first two listed above. The only main difference is that Zein seeks to [[HobbesWasRight eliminate humanity in order to keep it in line]] for it to establish a new world order.
294* KarmicDeath: [[spoiler:Almost permanently murdered Is because she didn't have any (apparent) backups. He and the rest of [=MetsubouJinrai.net=] would later die permanently after neglecting to make any backups of themselves. It's subverted ''Kamen Rider Outsiders'' when he's the only [=MetsubouJinrai.net=] member brought back.]]
295* KatanasAreJustBetter: Horobi carries a katana around that he doesn't actually use in battle, but gestures with whenever he is in a particularly hammy mood during a speech.
296** In ''Film/KamenRiderReiwaTheFirstGeneration'', he gets to use it in battle to [[AbsurdlySharpBlade cut a bullet and guns in half and block a laser shot]].
297** He finally gets to use the katana in the show proper in #41.
298* KickTheDog:
299** After Aruto hands over the key with Ikazuchi's data in exchange for Midori, Horobi seemingly lets her go, only to destroy her and proclaim that all Humagears touched by humanity must be disposed of. [[BrainwashedAndCrazy All as the Ark wills it.]]
300** He gets an even bigger one when he [[spoiler:coldly kills Is after she was trying to reason with him to back down from his crusade to destroy humanity.]]
301* KnightOfCerebus: Whereas Jin and Ansatsu-chan's danger as villains is offset by their goofy behavior, the only thing goofy about Horobi is what a ColdHam he is. He is monstrously strong and brutally efficient in battle, with the first episode where he takes direct action resulting in Yua being crippled and Fuwa being left inches from death.
302* KnightTemplar: [[spoiler:His alliance with Zein boils down to this after his revival. He made it clear that [[EvilWillFail Ark will disappear, and all malice will die with it]] and Zein will restore order to the world, even in the [[BewareTheSuperman most]] [[OrderIsNotGood extreme]] way possible.]]
303* KnightTemplarParent: [[spoiler:The end of #41 implies that Jin's safety and well-being is one of the reasons why Horobi is motivated to KillAllHumans.]]
304* TheLeader: Horobi is the acting leader of [=MetsubouJinrai=].net in place of the Ark and the one spearheading their attack against humanity. He steps out of the role after the Ark is revived and [[spoiler:even when the group is reformed, he doesn't really lead any more.]]
305* LikeASonToMe: When asked about their relationship, Horobi tells Jin that the latter is his son. It soon proves to be quite literal, as Jin is revealed in the next episode to be a [=HumaGear=] made by him. This behavior is explained in #25, where it reveals that Horobi was originally a youth-rearing [=HumaGear=] before becoming corrupted by the Ark's malice.
306* MeaningfulName: His name is Japanese for "[[NamesToRunAwayFromReallyFast to ruin/destroy]]".
307** His Humagear No. is 0103, a {{pun}} on otousan (father).
308* MistreatmentInducedBetrayal: [[spoiler:When [[BadBoss Ark]] paid his [[UndyingLoyalty loyalty and sacrifice]] by planning to destroy all [=HumaGears=] and attempting to kill his son, [[TheDogBitesBack Horobi finally had enough]].]]
309* MouthOfSauron: Acts as one for the Ark after he's repaired and taken into custody, as he can now directly receive orders from it due to its reactivation.
310* MyDeathIsOnlyTheBeginning: After [[TakingTheBullet taking Assault Wolf's finisher]], he refuses getting repaired as his death would allow Jin to reach Singularity and hate humanity. It's then subverted when Jin is the one who dies hours later, while Horobi is revealed to have not been NotQuiteDead as he first appeared.
311* MyGodWhatHaveIDone: [[spoiler:He finally comes through to this in the final episode when after Is's bow falls out Aruto's pocket while Horobi is going on about the pain of losing Jin. Horobi finally makes the connection that he's been causing that pain to others all along and that's what finally allows Aruto to start getting through to him.]]
312* NotInThisForYourRevolution: Subverted. Horobi is very skeptical about Jin's less-violent approach to Humagear liberation after his return and is rather vocal about his distaste for it; [[PragmaticVillainy yet has been relatively patient and allowing of things to happen]]. He shares Jin's goal of saving Naki, even helping out in securing Fuwa the second time around. However, it's clear he's still taking orders from the Ark over anything else.
313* NotQuiteDead: After his apparent death, Horobi is taken into A.I.M.S. custody and repaired. Who repaired him remains a mystery, but Horobi claims that it was a human who did so.
314* NotSoStoic: He appears like The Stoic at first, though his composure slips at several points.
315** When Is reveals that ZAIA's president had access to a Zetsumeriser, Horobi realizes that ZAIA (and humanity in general) could make use of the Ark's abilities and flips out.
316** In #34, he has this when he slaps Midori and tells her to shut up when she pesters him about his past.
317** [[spoiler:In #35, he's quite shocked after protecting Jin from Zero-One.]]
318** [[spoiler:In #41, he yelled at Jin for defying Ark, displayed discomfort over his inability to act on his own will and later showed rage toward Ark for harming and possessing Jin.]]
319** [[spoiler:He's quite shaken after killing Is in #42, and appears to be on the verge of tears.]]
320** [[spoiler:In #43, he shed tears over his dying son.]]
321** [[spoiler:The finale has him utterly sobbing over Jin's death, blaming his son's death on himself and saying that he was afraid of admitting that he has a heart. Hell, he's even crying at the end of his fight with Aruto, finally letting go of the malice he had for humanity all these years.]]
322* NotSoWellIntentionedExtremist: [[spoiler:Unlike [[OmnicidalManiac Ark]], Horobi claims his desire to destroy humanity is fueled by a wish to see [=HumaGears=] live in peace. At the same time, his willingness to destroy any Humagears who do anything to slight him undercuts his purported intentions.]]
323* OlderThanTheyLook: Played with. Horobi looks like a man in his twenties, but was only built twelve years ago. But at twelve years old he's one of, if the oldest Humagears in operation.
324* OrcusOnHisThrone: Horobi would much rather put Jin in the line of fire than go out and deal with the Riders himself. Even on his home turf, he strikes from the shadows to avoid being discovered, and it takes Jin being about to perform a HeelFaceTurn for Horobi to get off his throne and step in to "correct" the situation.
325* OutlivingOnesOffspring: For ten episodes until Jin comes BackFromTheDead. [[spoiler:Then, he lost his son again in #43.]] It still sticks when he is revived in ''Outsiders''.
326* PapaWolf:
327** There's two BlinkAndYouMissIt moments in #12. He pushed Jin behind him as Asatsu-chan converts the Trilobite Magia into Dodo Magia Chicks. Then later in the episode, he rushes to Jin's aide as he is overwhelmed in battle.
328** Happens again in #15, he shows concern over Jin being in danger from Vulcan's attack, but unfortunately, Ark hijacks him before he can do something about it.
329** [[spoiler:In #35, Horobi outright uses himself as a shield for Jin while untransformed.]]
330** [[spoiler:In #41, his parental instinct is strong enough to drive Ark out of his body.]]
331** In the alternate timeline, Horobi blocked a laser shot with his sword before it could hit Jin.
332* PetTheDog: Horobi's first appearance in the movie is protecting a [[{{Mook}} Trilobite Magia]] from a bullet.
333** Horobi's defection from The Ark comes about after [[spoiler:it tried to use him to kill his own son]].
334* PostFinalBoss: [[spoiler:More or less serves as this. The confrontation with him comes after the main plot surrounding the [[BigBad Ark]] had already been resolved.]]
335* ProperlyParanoid: Horobi usually keeps his robotic "allies" on a very tight leash for good reason, as they tend to try and betray him as soon as they grow too intelligent.
336* PurpleIsPowerful: Wears dark purple clothes, his Rider form is purple, and the main color of his [=LED's=] is what is left of his [=Humagear=] module.
337* PsychoPrototype: Horobi's age marks him as one of the earliest generations of Humagear, and as the leader of a terrorist organization bent on the extinction of mankind, he definitely counts as psycho.
338* RedOniBlueOni: He acts more composed and calm blue compared to the [[AxCrazy unstable]] Jin. Even their personal Progrisekeys play this trope straight: Horobi has the purple Sting Scorpion while Jin has the pink Flying Falcon before getting an actual red Burning Falcon.
339* RedemptionRejection: After defeating Ark-Zero, Aruto offers Horobi the chance to directly work together. Horobi turns it down, now believing that [[spoiler:co-existence between humans and Humagears is impossible and that humanity must be destroyed to prevent them from building another Ark]].
340** Is later offers him another chance at turning good and tries to get him to give in to his heart. Horobi responds by [[spoiler:murdering her]].
341** By the time he returns in ''Series/KamenRiderOutsiders'', he [[spoiler:has become completely jaded with the current state of the world. The fact he defects with Zein's faction in hopes of eliminating Ark for good, not knowing the [[OrderIsNotGood full]] [[TotalitarianUtilitarian picture]] of Zein's [[UtopiaJustifiesTheMeans actual end goal]] is basically a [[HistoryRepeats repeat]] of his past devotion to Ark.]]
342%%* {{Ronin}}: Gives off this vibe in the final episode.
343* SinisterMinister: He seems to act as one for the Ark, proclaiming its judgment for humanity to be culled.
344* SelectiveObliviousness: Seems to be purposely ignoring the fact that [[spoiler:his murder of Is inflicted Aruto with enough malice to willingly become Ark-One to destroy him.]]
345* SelfFulfillingProphecy: Horobi's attempts to KillAllHumans stems from a belief that humanity will create another Ark if they're not destroyed. [[spoiler:His murder of Is ends up directly creating another Ark, out of Aruto, [[NiceJobBreakingItHero the only person strong enough to stand up the the Ark]].]]
346* ShutUpHannibal: After being faced with Lugo and his horde of Abaddon users angrily telling him and Jin [[spoiler:along with his allies Fuwa, Yua, and Gai]] that [[DraggedOffToHell they won't be going to S's utopia]], Horobi calmly dismisses his insane rambling:
347--> "Paradise? Haven't you people heard...? [[spoiler:[[CharacterDevelopment This world isn't so bad after all]]]]."
348* SmugSmiler: Whenever his plans go well, he tends to sneer or smirk with confidence.
349* SoleSurvivor: The last remaining member of the original [=MetsubouJinrai=].net group as of #16, although he soon establishes that their fourth member is still out there.
350** This is then subverted as of #35 with the revival of Jin, Naki, and Ikazuchi.
351** [[spoiler: He's rebuilt by Foundation X in ''Kamen Rider Outsiders'', making him this once again to the original [=MetsubouJinRai=].net post ''Zero-One Others''.]]
352* StealthHiBye: Casually waltzed in to Enji's dressing room in #11 and later pulled this again in #40 in the middle of an open area while [[FailedASpotCheck everyone is present]]. [[LikeFatherlikeSon Now we know from whom Jin learned this trick.]]
353* StupidEvil: [[spoiler:Killing Is as a rejection of her overtures of peace only wound up pissing off Aruto instead of accomplishing anything meaningful.]]
354* TakingTheBullet: Knocks Jin out of the way of Vulcan Assault Wolf's Magnetic Storm Blast Fever Rider Kick in #15, taking the apparently fatal hit instead.
355** He did it again in the stage show, shielding Jin from Ark-Zero's attack with his body.
356* ThatManIsDead: Refuses to admit his past as a Father-Type [=HumaGear=] and claims he only exists to serve the Ark now.
357* ThisCannotBe: After Aruto mentions that Gai is making active use of [=ZetsumeRisers=], Zetsumerisekeys, and the Ark in general, he immediately seizes up and goes into a massive panic attack.
358* TragicVillain: Aptly put, his 12 years of existence has not been kind to him. To boot, he had his programming twisted and enslaved for ''12 years'' by a murderous, misanthropic satellite, finally got a chance to attain self-awareness only to get reset as a soulless meat suit, and his "son" Jin (the reason why he reached Singularity in the first place) appears to be apathetic towards his well-being and tried to off him at one point (though not without a good reason). [[spoiler:Subverted when he chooses to continue his crusade against humanity even after the Ark is destroyed and kills Izu, one of the Humagears he claims to be fighting for, simply because she tried to talk him down. He's not entirely unsympathetic, but he's acting out of his own will now.]]
359* {{Tsundere}}: [[spoiler:#45 has him acting indifferent to Jin's acts of affection...then the camera pans to show him smiling.]][[spoiler:His and Jin's actors have also repeatedly said that Horobi is a tsundere and he is actually quite cute.]]
360* TykeBomb: As described by Aruto in #29, [=HumaGears=] are basically children who learn and are influenced by their environments. Given Horobi is only 12 years old and spent most of his years being a brainwashed terrorist under the influence of murderous, misanthropic satellite that only knows about humanity's worst negative traits; for all intents and purposes, Horobi is essentially a child who only knows how to be a terrorist and nothing else.
361* UngratefulBastard: Aruto makes numerous attempts throughout the show to turn Horobi to the side of good or negotiate with him, all of which are met with Horobi smacking Aruto down out of zealotry. [[spoiler:After he responds to one such attempt by murdering Izu, Aruto finally has enough of giving Horobi second chances and swears revenge.]]
362* UnwittingInstigatorOfDoom: [[spoiler:His murder of Izu spurs Aruto to cross the DespairEventHorizon and become Ark-One, the very thing he was trying to prevent by killing humanity.]]
363* UnwittingPawn: Even after [[spoiler:betraying and helping Zero-One to destroy the Ark, Horobi is still carrying out the Ark's will by trying to destroy humanity and his murder of Izu helps facilitate Aruto's downfall into becoming Ark-One.]]
364* VillainousBreakdown: [[spoiler:Ultimately breaks down when Aruto empathizes with his grief over Jin. He acknowledges his wrongs and blames himself for Jin's death, saying that he was afraid of admitting that he truly ''cared'', all the while sobbing through it all.]]
365* ViolenceIsTheOnlyOption: Horobi resorts to this as he doesn't really know any other method of dealing with the problem at hand, whether if it's a threat of a new Ark emerging or handling his new found emotions. Unfortunately, this is at the cost of causing unnecessary conflict between humans and [=Humagears=], including [[spoiler:killing members of his own kind and dragging others into a needless conflict.]]
366* WhatIsThisFeeling:
367** [[spoiler:#35 shows Horobi protecting Jin again from another attack, this time questioning as to why he did so in the first place. Later on, Aruto assures him that his protection of Jin happens because of his own will as a father figure that allowed him to do so. As later determines that this feeling is how he reached Singularity, and [[KickTheDog takes the data right after.]]]]
368** Invoked in #41. [[spoiler:After sparing Jin during their battle]], Horobi spends the episode wondering what's holding him back. It takes the Ark [[BodySurf hijacking him and attacking his son]] for him to reach a HeelRealization and rebel.
369** In the final episode, he [[spoiler:breaks down and ultimately admits he caused Jin's second death and inflicted that same pain on Aruto multiple times because of his refusal to actually deal with this trope.]]
370* YouAreACreditToYourRace: Has this attitude towards Aruto.
371
372!!!Tropes exclusive to him as Kamen Rider Horobi
373[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr01_horobistingscorpion.png]]
374 [[caption-width-right:210:''Force Rise!''\
375'''''Sting Scorpion!'''''\
376[[AC:''Break Down.'']]]]
377[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr01_horobiarkscorpion.png]]
378 [[caption-width-right:210:''Progrise '''Ark!'''''\
379'''''Destruction! Ruin! Despair! Extinction! Ark Scorpion!'''''\
380[[AC:''The conclusion after evil climbs the top of the highest mountain of rock.'']]]]
381* TheAce: In terms of sheer skill, Horobi surpasses all other riders, to the point where he's perfectly capable of holding his own against Shining Hopper and Thouser despite the gulf in raw power.
382* AssistCharacter: Horobi can summon his mechanical scorpion Rider Model from his transformation sequence to assist him in battle. It's powerful enough to withstand the Breaking Impact from Zero-One in Breaking Mammoth form.
383* AwesomeByAnalysis: Horobi makes sure he's still a threat without any upgrades to his Rider form by learning how his opponents act and attack.
384--> '''Horobi:''' [[BadassBoast I grew stronger by learning. As all AI do.]]
385* CombatTentacles: The Acid Analyze stinger on Horobi's wrist can extend on a prehensile tentacle, allowing him to dispose of evidence from well out of sight. It is also used in this way for his Rider Kick. This is later upgraded into the more powerful Destanalyze stinger with Ark-Scoprion, along with the ability to manifest it from anywhere on his body.
386* DarkIsEvil: His suit is in dark purple colors and he's clearly an evil Kamen Rider.
387* FinishingMove: Depending whether from his Driver or an auxiliary weapon.
388** [=ForceRiser=]:
389*** '''Sting Dystopia''': A poisonous metal chain emerges from the Acid Analyze unit and surrounds Horobi's right leg before he performs an explosive side kick.
390*** '''Sting Utopia''': A metal chain emerges from the Acid Analyze and wraps around the enemy, electrocuting them before bringing them to Horobi. Then, it wraps around his leg before knocking his helpless target back with an explosive side-kick.
391** Attache Arrow:
392*** '''Amazing Kaban Shoot''': By inserting the Amazing Hercules Progrisekey in his Attache Arrow in Arrow Mode, Horobi shoots a lime green energy construct resembling the head of a Hercules Beetle.
393*** '''Sting Kaban Shoot''': By inserting the Sting Scorpion Progrisekey in his Attache Arrow in Arrow Mode, Horobi fires an enhanced arrow at this opponent. If the opponent blocks this attack, it splits into multiple arrows and strikes the opponent at once.
394** Zetsumetsu Driver
395*** '''Hatred Impact''': Horobi wraps his arm with a Destanalyze chain, and delivers a Rider Punch charged with dark energy.
396*** '''Extinction Impact''': Horobi manifests multiple Destanalyze stingers on chains to assault the target, then follows up with a more powerful version of his '''Sting Dystopia''' finisher.
397* EvilKnockoff: Horobi's Ark-Scorpion form is achieved using the Zetsumetsu Driver and Ark-Scorpion Progrisekey, both of which are jury-rigged versions of the Zero-Two Driver and the Zero-Two Progrisekey.
398* GiantSpider: An arachnid, really, but this is Ark-Scorpion's motif, based on the ''Pulmonoscorpius kirktonensus'' which had a projected maximum size of about a foot long. This is emphasized by it cranking all of Sting Scorpion's powers up.
399* MeaningfulEcho: The first half of the transformation jingle for Ark-Scorpion is an English-translated rendition of the Japanese segment of Ark-One's jingle, reflecting the similarities Horobi and [[spoiler:Aruto]] share in their embrace of ThePowerOfHate.
400* PersonalityPowers: The Sting Scorpion Progrisekey he takes his power from has "Poison" listed as its special ability. Horobi in turn has a toxic relationship [[AbusiveParents with his "son"]] Jin, is uncaring who he hurts to reach his goals, and operates as a cyber-terrorist who poisons [=HumaGear=] society.
401* PoisonIsCorrosive: Much like Blood Stalk before him, Horobi's poison is capable of disintegrating whatever he injects with it. It even works on robots.
402* PurpleIsPowerful: A purple suit with seemingly nothing able to keep him down, even surviving being crushed by Breaking Mammoth without a scratch.
403* RedAndBlackAndEvilAllOver: The Ark-Scorpion form adds black armor with red markings, as well as replacing half of Horobi's helmet with Ark-Zero's signature red eye.
404* ScaryScorpions: Horobi's main AnimalMotif is the scorpion.
405* StrongAndSkilled: Horobi's combination of twelve years of experience as a Rider, a strong Progrise Key, and being a [=HumaGear=] with superior physical strength combine to make him a terror on the battlefield. His lack of upgraded forms eventually reduces him to WeakButSkilled, but his raw ability combined with his adaptive AI means he is able to keep up with the other riders even when they outclass him in power, as demonstrated by his fight with Thouser largely falling in is favour.
406* SpontaneousWeaponCreation: When Horobi firsts transforms into Ark-Scorpion, he generates an entire field of all the weapons the various Riders have used in the series for both his and Aruto's use.
407* SuperMode: Horobi Ark-Scorpion is his final form and its power is on the same levels as Kamen Rider Ark.
408* VillainForgotToLevelGrind: Horobi starts out so far above the human Riders that his fights primarily consist of toying with them and demonstrating their utter inability to hurt him. Shining Hopper and Assault Wolf in turn are so far above his level, though, that once the human Riders have them, it takes only a single episode for Horobi to meet his apparent end at their hands. Upon his return, he averts the trope: while Horobi's physical strength has only fallen even further behind during his time off the battlefield, he's caught up by spending all that time sharpening his skills through study. Eventually, its played straight in #34, when he gets overpowered by [=MetalCluster=] Hopper, although unlike Thouser he is able to actually block several attacks. By the final arc he's grown able to fight evenly with Rampage Vulcan. At the end of the series, he finally receives a new form, Ark-Scorpion, that is said to be as strong as Kamen Rider Ark himself.
409* WeaponSpecialization: Horobi's signature weapon is the Attache Arrow, a [[EnergyBow bow that fires energy arrows]], which can also be used as [[DoubleWeapon a double bladed sword]], in much the same way as the [[Series/KamenRiderGaim Sonic Arrow]] can be used. Eventually {{subverted}} as multiple copies of the Attache Arrow are present in later episodes.
410[[/folder]]
411
412[[folder:Jin/Kamen Rider Jin]]
413!!Jin/Kamen Rider Jin/[[spoiler:[=Sold0=]]]
414!!!'''Portrayed by:''' Daisuke Nakagawa (live), Eitoku (suit)
415
416->''I will unchain Humagears from humanity and grant them true freedom. That's who Kamen Rider Jin is.''
417
418The primary field agent of [=MetsubouJinrai=].net, Jin is an immature and sadistic Humagear responsible for handing out Zetsume Risers to his fellow Humagears to make them go berserk. Following a moment of conscience, he is brainwashed back into his old self and forcibly turned into a Kamen Rider to further his "father" Horobi's plans.
419!!!Tropes that apply to him in general
420[[quoteright:350:https://static.tvtropes.org/pmwiki/pub/images/jins.jpg]]
421[[caption-width-right:350: LEFT: Jin, #1-16; RIGHT: Jin, #25-present\
422[[labelnote:Click here to see Jin in ''Reiwa Generation''.]] https://static.tvtropes.org/pmwiki/pub/images/reigen_jin.png[[/labelnote]]]]
423
424* AmbiguousRobots:
425** Jin's ears are covered by his hoodie and hair, making it unclear if he is a human or a [=HumaGear=] until #6 establishes he is the latter.
426** This comes up again when he returns, due to his new body not having the Humagear Module ears, but rather a smaller unit akin to earbuds, making the others question if he was human somehow.
427* AntiVillain: He seems to be shaping up to this. After his revival, he's still on Horobi's side, but has decided to focus on saving and freeing [=HumaGears=]. He's even willing to work with Aruto if it means saving them from Gai's tyranny.
428** As revealed in #36, [[spoiler:he actually wants to destroy the Ark for good, ruining both [=MetsubouJinrai.net=]'s plans as well as ZAIA Japan's, making him closer to an AntiHero.]]
429* TheAtoner: Jin wants to make up for his past actions of hurting [=HumaGears=] by liberating all [=HumaGears=] from anyone or anything that would control them - humans, Satellite Zea, and Ark included.
430* AxCrazy: Jin is initially both childish and amazingly ruthless when he first appears, gleefully executing a violent Trilobite Magia that attacks him and unhesitating in fighting and hacking other Humagears. Later {{subverted}} as he significantly mellows out and matures after his "revival".
431* BackFromTheDead:
432** After having been destroyed by Aruto in #16, Jin was rebuilt by [[spoiler:Williamson Yotagaki]], sporting a new form and belt called the ZAIA [=SlashRiser=]. He arrives just in time to prevent Fuwa from capturing Horobi following the latter's escape.
433** [[spoiler:After being accidentally destroyed by Aruto in #44, he comes back for a ''second'' time thanks to Yua in the finale.]]
434* BadassInANiceSuit: He ditches his hood and cloak for a very expensive-looking suit after he returns. He also wore one in the alternate timeline.
435* BadassInDistress: the plot of Metsuboujinrai V-Cinema has him being kidnapped.
436* BadBadActing: Is forced to put on an Aruto impression during a ''batsu'' (punishment) game in the short anime, with predictable results. Notably, as soon as he's finished acting, the desk lamp and monitor in [=MetsubouJinrai=]'s hideout [[GlassShatteringSound both crack at the same time]].
437* BeCarefulWhatYouWishFor: Actually getting his own Progrise Key and belt is a much more unpleasant experience for Jin than he might have expected.
438* BetrayalByOffspring: [[spoiler:Attempts to off [[{{Patricide}} Horobi]] together with Ark.]]
439* BoundAndGagged: After taken captive, Jin is put on a chain.
440* CallingParentsByTheirName: He calls his "father" Horobi, though not out of disrespect.
441* CantKillYouStillNeedYou: Jin comes to the conclusion that Aruto is important for the [=HumaGears=] to achieve Singularity after witnessing the new G-Pen doing so. Because of the need for Aruto to be alive, he protected Zero-One from Thouser and AIMS in that same episode (31).
442* CaringGardener: Post-series, he's shown tending on the flowers with a sweet smile on his face.
443* CharacterCatchphrase:
444** From #1-16: "There you are. Now we're friends!" whenever he approaches his latest [=HumaGear=] victim, and responds with "Wrong. Your job is to make them ''extinct''." when the aforementioned victim protests that their job is supposed to make people happy.
445** After his "revival", he has a tendency to mutter things to the effect of "I will liberate the [=HumaGears=]."
446* CharacterDevelopment: At the beginning of the series, Jin was AxCrazy and very childish, often not understanding the implications of his actions. After his revival, he's noticeably a lot more mellow and mature than his previous incarnation, often putting a lot more thought into his actions than his previous recklessness. He's also noticeably much more individualistic, forming his own ideas for what to do with the [=HumaGears=] rather than blindly following Horobi and the Ark. It helps that [[AllLovingHero Aruto]] ''considers'' him as a GodzillaThreshold once he's in a dire situation, [[spoiler: such as Gai's acquisition of Hiden Intelligence and the Ark's revival.]] Despite all of this, it should be mentioned that his ideas do come off fairly short sighted as he works towards his goals, thinking that everyone would just go along with his ideas rather than realizing that the reality is much more complicated.
447* TheCorrupter: He is in charge of strapping Zetsumerisers and their Zetsumerisekeys to hapless [=HumaGears=] to turn them into Magias.
448* TheCracker: He is the hacker group's go-to guy whenever they need a [=HumaGear=] to go on a killing spree.
449* CurbStompBattle: Following his return with the ZAIA Slashriser and the Burning Falcon Progrisekey, Jin demonstrates his improved fighting prowess by defeating Fuwa in Assault Wolf form ''twice.''
450* DidNotThinkThisThrough: As noted above, this can be considered Jin's flaw. Despite his maturity, his plans have a tendency to fall short as a result of his lack of experience. Notably, this is seen when his plan to free G-Pen was...to tell him he was free and capable of making his own decisions, to no avail. [[spoiler:This ends up screwing over his plan to kill the Ark, since he never planned farther than "he and Yua destroy the Ark after it possesses Horobi". Thus he gets caught off guard by how powerful the Ark was and was forced to retreat with Yua after she gets severely hurt by Ark-Zero.]]
451* DiedInYourArmsTonight: [[spoiler:He died for the second time in his father's arms.]]
452* TheDragon: He is Horobi's right hand man and acts as his primary field operative and attack dog. He retains this role after the Ark comes back online and he makes his return in #25, continuing to act as the organization's main field agent while Horobi is more or less bumped down to being the EvilGenius and MouthOfSauron for the Ark.
453* DragonAscendant: Horobi grooms Jin as his successor in accordance with the Ark's will, a position that Jin fills in #16 after Horobi takes a bullet for him. It seems to have stuck partially after Jin returns in #25, now with a more secretive agenda.
454* DragonWithAnAgenda: After his return, Jin has his own personal motives that are clearly unaligned with Horobi's goal of exterminating humanity, to the extent that he is fully independent, not connected to the Ark anymore. Instead of seeking to carry out the Ark's will, Jin wants to emancipate all [=HumaGears=] from servitude to humanity, and mostly sees the Ark and [=MetsubouJinrai.NET=] as a means to achieve that end.
455** This gets further elaborated in #36, when it's revealed that he actually [[spoiler:wants to destroy the Ark for good, ruining both [=MetsubouJinrai.NET=]'s plans and ZAIA's.]]
456* DyingDeclarationOfLove: A platonic example. [[spoiler:He called Horobi his father in the last moment of his life.]]
457* EasilyForgiven: None of the other members of [=MetsuboJinrai.net=] really react to Jin's attempts to [[TheMole sabotage The Ark and its goals]]. The only one that ends up responding at all is Horobi, and that's ''after'' [[spoiler:Zero-Two has debuted and proven the Ark isn't invincible]].
458* EnemyMine: He makes it clear to Aruto that he doesn't share the same idealism as the latter did and even plots to steal [=HumaGear=] Progrise Keys when given the chance, but for now he decided that supporting Aruto in awakening his kind into Singularity would be a better choice.
459* EstablishingCharacterMoment: While Jin is bouncing up and down laughing at the destruction caused by his first Magia creation, one of the Trilobite Magia (formerly a police [=HumaGear=]) attempts to attack him. Jin keeps laughing while he nonchalantly spins around, puts the Magia in a headlock, and shoots it "dead" with its own gun.
460* EvenEvilHasLovedOnes: He loved Horobi with a puppy love and greatly cared about Raiden and Ansatsu-chan. He even tried to give them something akin to a human burial. He also cared for Naki and sought to free and restore them as fast as possible.
461* EvenEvilHasStandards: Zigzagged. He's devoted to the goals of [=MetsubouJinrai.net=] and will gladly turn any [=HumaGear=] that meets the requirements into a Magia. However, upon hearing Aruto telling him what a parent's love was like, as well as Seine begging for him to stop, Jin does try to remove the belt from her waist. Sadly, he's reprogrammed by Horobi before he can follow through.
462* EvilEvolves: His new remodel ditches the [=HumaGear=] Module earpieces for much more human-like ears aside from a communicator-like earpiece on his left ear, which Jin describes as the next evolution of [=HumaGears=]. Isamu and Aruto assumed he somehow became human because of this look before Is confirms he is still a [=HumaGear=].
463* FashionableAsymmetry: Jin's suit is pinstriped on one side and plain black on the other. Back when he's still a baby, his boots are also mismatched, which complimented his father (as their actors decided to switch one boot with each other).
464* FauxAffablyEvil: He seems like a jolly guy at first and views the Magia he creates as his "friends", but it doesn't take long to see he is unhinged and crazy.
465* FightingFromTheInside: Temporary managed to fight Ark's possession to tell Aruto [[HeroicSacrifice to finish him]] [[VillainsDyingGrace together with Ark]].
466* {{Flanderization}}: A subtle but noticeable example is inflicted on Jin by his brainwashing, significantly dialing up his childish traits.
467* GeniusBruiser: He's a fairly skilled computer hacker and [=MetsubouJinrai.NET's=] strongest fighter as Burning Falcon.
468* GigglingVillain: Jin watches the results of the havoc he wreaks while giggling like a kid in a candy store. As early as the first episode, Jin casually disables then headshots a [=HumaGear=] attempting to attack him, laughing happily all the while. This trait disappears once he returns.
469* {{Handguns}}: The show likes to draw attention to the fact Jin carries an actual gun that fires bullets, rather than FamilyFriendlyFirearms. In Japan, where gun control is extremely strict, this characterizes him as a dangerous man who is capable of FamilyUnfriendlyViolence.
470* GoodAllAlong: [[spoiler:Post-revival, it turns out Jin was a double agent working to destroy the Ark all along.]]
471* HazyFeelTurn: After Jin's revival, it's left unclear whether he is good, evil, or something in-between. He gradually leans more towards face than heel through seeing the merits of Aruto's philosophy, though he's still more of a neutral alignment at best. He eventually turns full face after the revival of the Ark, fully on the side of the heroes.
472* HeelFaceDoorSlam: He ''tries'' to pull a straight HeelFaceTurn once [[GrewBeyondTheirProgramming he realizes how badly he's hurting others]] and tries to save Seine from the [=ZetsumeRiser=], but Horobi arriving and [[ResetButton hacking him with a [=ForceRiser=]]] sets his personality back to where it was before his VillainousBreakdown, negating his chance at redemption.
473* HeroicSacrifice: [[spoiler:He dies to make sure that Ark-One's finishing move doesn't kill Horobi.]]
474* HiddenDepths: Despite his initially childish mannerisms, him being chosen by the Ark as one of the most intelligent prototype [=HumaGear=]s meant that he was actually [[SmarterThanYouLook smarter than he looks]], which comes to show as the series progresses.
475* IJustWantToBeSpecial: Jin quickly takes a fascination with the power of Progrise Keys, deciding he wants one of his own and making attempts to steal one off Zero-One. Horobi discourages this behavior as a distraction from their main goal. [[BeCarefulWhatYouWishFor He does eventually get his wish, but not in the way he was thinking of...]]
476* IdiotBall: His and Yua's plan to destroy the Ark was a pretty major grasp of one. [[spoiler:They help give the Ark a physical body, thinking they can destroy it once it possesses Horobi and becomes Ark-Zero. Except Ark-Zero is much stronger than both of them. And since it was still linked to the satellite, if they had defeated it it could have just reformed and become Ark-Zero again. [[NiceJobBreakingItHero Oops]].]]
477* ImmuneToMindControl: Zig-zagged. Jin is the only member of Metsubojinrai able to retain his Singularity during As' Malice Learning extractions, implying he's resistant to the Ark on some level. Sadly for him, he isn't immune to [[BodySurf being outright hijacked]] and the Ark exploits this for all it's worth.
478* InTheHood: Part of his regular attire from #1-16.
479* {{Irony}}: He regularly subjects [=HumaGears=] that GrewBeyondTheirProgramming to FaceHeelTurn brainwashings, but when a VillainousBreakdown causes him to start a HeelFaceTurn, he [[ResetButton gets subjected to a brainwashing himself]], courtesy of Horobi, in order to maintain his villainous status.
480* {{Keet}}: A rather dark example. He's always gleeful at, or in spite of, the destruction he commits. After his "revival", Jin has become much more mature, but still retains his light-hearted disposition.
481* KidsAreCruel: He treats his villainous acts with a sadistic glee, seeing them as more of a game than anything.
482* {{Leitmotif}}: After his revival, his entrances to the battlefields is almost always accompany by OminousLatinChanting, a more passionate orchestra piece in contrast to [=MetsubouJinrai=].net's subdued electronic theme.
483* MeaningfulName: His name can be translated as 'quick', 'swift' or 'fast'. In #37, he displayed ability to move at SuperSpeed.
484* MyGodWhatHaveIDone: His attempt to pry the [=ZetsumeRiser=] he put on Seine come off as this as it directly follows his VillainousBreakdown over realizing that his "familial" connection to Horobi is toxic and abusive. After his revival, he understood what Aruto's words meant during their previous battle and realized how wrong he was towards the [=HumaGears=] he wanted to befriend, so he decided to change his ways by fighting for all [=HumaGears=] freedom.
485* NiceJobFixingItVillain: Jin's (initial) immaturity and sadism makes him prone to making decisions that hurt [=MetsubouJinrai=].net’s long term plans on a whim. Aruto had been looking for proof to convince others that there was a group responsible for the [=HumaGears=] going out of control. Jin revealing himself to Aruto gives him the proof he needs to convince everyone about the threat of [=MetsubouJinrai=].net, thereby making its existence public.
486* ObliviouslyEvil: Jin doesn't seem to be able to comprehend that his actions are causing harm. When he realizes that the [=HumaGear=] he is hacking is someone's loved one, he tries to pull the Zetsumeriser off of it, only for Horobi to appear and reset him back to before his HeelRealization.
487* OddNameOut: He is the only one whose directly named after his kanji in [=MetsubouJinrai=].net, while the names of the other three members are alternative readings of their respective kanji.
488* OffhandBackhand: He easily manhandles one of the infected Humagear attempts to attack him without even looking at his attacker. It proves that Jin is not a villain to be underestimated.
489* {{Patricide}}: He intended to sacrifice his father to destroy the Ark, though he showed remorse several episodes later and tried to atone for it.
490* PetTheDog:
491** Following ZAIA's acquisition of Hiden Intelligence, Jin broke into the company to rescue the deactivated Is and the Zero-One Driver. Saving Is was for his own agenda, but taking Zero-One Driver and the Progrise Keys to Aruto is the closest thing his act kindness towards a human.
492** In #36, he shows concern and remorse toward Yaiba. He even brings her to a hospital to get treatment for her injuries.
493* PsychopathicManchild: His introductory scenes establish Jin as an even more sadistic take on [[Series/KamenRiderExAid Parado]], displaying childlike glee at the destruction caused by his Magia creations to the point of jumping with joy. He also gleefully traps a rogue [=HumaGear=] that attacks him in a headlock before ''executing it with a handgun without missing a beat.'' The manchild aspect is noticeably elevated when Jin is brainwashed by Horobi using the Force Riser. Following his "revival", Jin has adopted a much more mature personality while also retaining his light-hearted tendency at the same time.
494* RedOniBlueOni: Jin is the unstable and easily excitable red, in contrast to the [[TheStoic composed]] Horobi. Even their personal Progrisekeys play this trope straight: Horobi has the purple Sting Scorpion while Jin has the pink Flying Falcon before getting an actual red Burning Falcon. This bites him when his impulsiveness reveals the existence of [=MetsubouJinrai.net=] to the world through his revealing himself to Aruto. Subverted after Jin's revival, as he has taken on a more mature personality and philosophy despite his short-term and impulsive goals, while Horobi remains stoic as ever.
495* ResurrectiveImmortality: While most [=HumaGears=] have this ability if someone rebuilds them and has a backup of their data, Jin is the only main character who actually ''uses'' the ability to be rebuilt after death, befitting his phoenix motif.
496* TheReveal: Horobi reveals to him he is a [=HumaGear=] made by him just as the former forces a [=ForceRiser=] onto him that further hacks him.
497* SuperPrototype: [[spoiler:Lyon Arkland reveals that Jin was rebuilt as the first Sold Humagear of ZAIA's Project Sold, a plan for ZAIA to mass-produce and sell expendable Humagear soldiers, and that he was made to become the center of the Massbrain A.I. controlling all the Solds in a plan to have Metsuboujinrai.net return to villainy.]]
498* SlasherSmile: He's prone to smiling evilly and gleefully whenever he's causing destruction.
499* SoulJar: Jin's second iteration stores his backup data in his earpiece, allowing him to be resurrected using it.
500* StealthHiBye: Never bothers disguising himself, but is capable of waltzing through city streets and sneaking into heavily guarded facilities such as the Hiden Intelligence HQ without being noticed. He is even able to slink past an ''entire group'' of people to hack a bus driver [=HumaGear=] not ''twenty feet'' from the crowd without anyone noticing.
501* SuperSpeed: [[MeaningfulName True to his name]], Jin can move fast enough to outrun a bullet in his civilian form.
502* TallDarkAndHandsome: He's the tallest character (with his actor coming in at 184 cm [[note]] around a little bit over 6'0" [[/note]]), has a more serious personality after his revival, and fairly easy on the eyes, especially in that spiffy suit of his.
503* TakeAThirdOption: Having achieved Singularity after his revival, Jin comes to his conclusion that [=HumaGears=] should not be enslaved into serving humanity under Zea, nor should they be brainwashed into exterminating humanity under the Ark, and instead be allowed to decide their own fate like he is. It is to the point that he is now a fully autonomous [=HumaGear=] not connected to either entity, and now works with Aruto to save and awaken [=HumaGears=] into taking charge of their own lives.
504* TakingTheBullet: [[spoiler:He shielded his father from Ark-One's finishing move.]]
505* {{Technopath}}: Jin develops this ability upon reaching Singularity, an ability that, apart from Naki, no other [=HumaGear=] seems to possess. This allows him to control machines like the Gigers without needing to use [=ZetsumeRisers=] on them, or even take control of other [=HumaGears=]. In his second incarnation, a [=HumaGear=] affected by Jin's ability gains green ears instead of the usual red or blue while he's establishing or releasing them from his control.
506* TearfulSmile: [[spoiler:Wears one at the end of of his second life.]]
507* TheReasonYouSuckSpeech: In #15, despite him referring to the [=HumaGears=] as his "friends", Aruto calls Jin out for attacking them and turning most of them into Magia.
508* TheMole: Implied in #35.5. After As collects all the Singularity data from [=MetsubouJinrai=].NET members sans Jin himself, and As goes to inform the Ark of her success, Jin calls an unknown person about the Ark's impending revival. [[spoiler:In #36, Ark confirmed he was a traitor]].
509* TheStarscream: [[spoiler:#36 reveals that Jin's sudden compliance to [=MetsubouJinrai=].net was in order to, with Yua's help, kill the Ark after it possesses Horobi's body, thus ending both [=MetsubouJinrai=].net's and ZAIA's plans. Unfortunately, it doesn't pan out.]]
510* TokenGoodTeammate: Once [[spoiler:The Ark]] takes leadership over [=MetsuboJinrai=] and [[spoiler:extracts the Singularities of the members to brainwash them]], Jin becomes this due to being ImmuneToMindControl. Unfortunately, this also makes him [[spoiler:The Ark]]'s primary choice for its BodySurf ability.
511* TookALevelInCynic: Jin manages to take levels in both cynic ''and'' [[TookALevelInIdealism idealist]] after his revival, becoming a more mature and independently-minded person who genuinely believes that [=HumaGears=] should be free from all control and choose what they want to do.
512* TookALevelInJerkass: Of a subtle sort. He's rather passive and a bit apathetic towards Horobi's actions and words after his revival. [[spoiler:However, when Horobi's at risk of becoming the Ark, he literally throws himself at the Riders to protect Horobi from that fate, proving that he still very much cares about his father.]]
513* TragicKeepsake: He kept Sting Scorpion after Horobi's death and used it in battle.
514* TragicVillain: Aruto pities Jin's first incarnation during their final battle, noting that Jin's murderous rampages and atrocities against humanity are simply what he was taught to do from birth.
515* TurnedAgainstTheirMasters: Zigzagged. Jin proclaims he's still loyal to [=MetsubouJinrai.net=], but when Horobi states that they can resume their plan of eradicating humanity, Jin tells him that he didn't come back for that reason. While the two remain mostly friendly, a rift forms between them over what to do about Naki.
516** This is more or less played straight with the reveal that [[spoiler:he teamed up with Yua in order to destroy the Ark for good, which by extension, would destroy [=MetsuboJinrai.net=]'s plans. This obviously did not pan out, as noted in DidNotThinkThisThrough above]].
517* UnexplainedRecovery: Following his revival, how Jin was recreated or how he got his hands on the ZAIA Slashriser is still unknown, much less the question of exactly ''who'' was responsible for reviving him in the first place with others more or less confirming that it wasn't the Ark due to Jin not being connected with it. [[spoiler:It's later revealed he was rebuilt by Williamson Yotagaki from ZAIA Enterprise, who also gave him his [=SlashRiser=], and by Lyon Arkland as a proof of concept for Project Sold.]]
518* VillainousBSOD: He suffers one after learning from Aruto what a real bond between parent and child is like and how horribly abusive a "parent" Horobi is to him. Unfortunately, this gets undone due to Horobi reprogramming him with the [=ForceRiser=].
519* VisionaryVillain: Jin has become this after his revival, claiming to Aruto that he now personally seeks to truly emancipate [=HumaGears=] not only from the control of humans, but from Satellites Zea and Ark as well. Although this doesn't stop him from staying with [=MetsubouJinrai.net=], he makes it clear that he doesn't want to or no longer cares about the elimination of humanity, and he puts his personal goals above the goals of [=MetsubouJinrai.net=], as noted in TurnedAgainstTheirMasters above.
520* WhatIsThisFeeling: He starts feeling sick and clutching his heart after Raiden bites it, something Horobi states means that Jin is ''finally'' achieving Singularity.
521* WildCard: By the third arc, where he aids both the heroes and Horobi to advance his own agenda.
522* WouldHitAGirl: In the same episode he's responsible for messing up Yua's arm with his newly-acquired Attache Arrow, and nearly shooting her in the face. It's fairly obvious what would have happened if [[DynamicEntry Fuwa didn't step in.]]
523 * YoungerThanTheyLook: His exact age is unknown. Horobi stated he created him but he was also one of the first Humagear to be hacked by the Ark. He's likely younger than Horobi but still older than many other Humagear. His actor noted that his mental age prior to reviving was about five.
524
525!!!Tropes exclusive to him as Kamen Rider Jin
526[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr01_jinflyingfalcon.png]]
527 [[caption-width-right:210:''[=ForceRise=]!''\
528'''''Flying Falcon!'''''\
529[[AC:''Break Down.'']]]]
530[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr01_jinburningfalcon.png]]
531 [[caption-width-right:210:''[=SlashRise=]!''\
532'''''Burning Falcon!'''''\
533[[AC:''The strongest wings bearing the fire of hell.'']]]]
534* BoxingLessonsForSuperman: Upon his return, Jin's skills as a fighter have drastically improved from his first incarnation.
535* CameBackStrong: By the time of his first defeat, Jin was well below the Assault Riders and Horobi in the pecking order. Upon his return with the new Burning Falcon form, he's strong enough to fight Thouser evenly and appear like it's not particularly difficult for him.
536* ConfusionFu: Jin's fighting style involves him being as unpredictable as possible. He'll use underhanded tactics like stealing equipment if it means giving himself the advantage. Not so much nowadays with his upgrade into Burning Falcon.
537* DiscardAndDraw: Jin loses his [=ForceRiser=] and Flying Falcon Progrise Key but gains the much more powerful ZAIA [=SlashRiser=] and Burning Falcon Key.
538* EvilKnockoff:
539** Jin requires a stolen Progrise Key to transform, which is performed with a [=ForceRiser=] that, true to its name, forces open the Key to enable a transformation, since it isn't authorized technology from Hiden Intelligence or A.I.M.S.
540** The [=SlashRiser=] is one to the A.I.M.S. [=ShotRiser=]. The [=SlashRiser=] is [[RedAndBlackAndEvilAllOver colored red]] and can act as a bladed weapon, whereas the [=ShotRiser=] is [[BlueisHeroic blue]] and can act as a firearm. Unusually for this trope, the [=SlashRiser=] and [=ShotRiser=] were both developed by ZAIA Enterprise.
541* FashionableAsymmetry: Jin's helmet is malformed and parts of his armor has diamond plate pattern steel on it to show how the Force Riser is a bootleg TransformationTrinket. Burning Falcon sheds the asymmetry, though Jin himself keeps the trope through the subtle striped pattern on his new civilian clothes.
542* FeatherFlechettes: Jin can use his Scrambler wings to throw metal feathers for long-ranged combat.
543* {{Flight}}: Like Zero-One, Jin can freely fly using the Flying Falcon Progrise Key's ability. Unlike Zero-One, Jin uses the Scambler wings on his back to provide the needed lift. He retains this ability as Jin Burning Falcon, using the upgraded Burning Scambler wings.
544* FinishingMove: Depending of whether he uses his Driver or an auxiliary weapon.
545** [=ForceRiser=]:
546*** '''Flying Utopia''': Soars into the air with the Scrambler wings while spinning, and then delivers a kick charged with pink energy at the target.
547** [=ZAIA SlashRiser=]
548*** '''Burning Rain''': Slashes his opponent twice with the [=SlashRiser=] coated with flames.
549*** '''Burning Rain Rush''': Executes a flame-coated Rider Kick on his opponent.
550** [=Attache Shotgun=]:
551*** '''Sting Kaban Shot''': Fires a construct of the Acid Analyze unit on a chain at his opponent.
552* LightningBruiser: Burning Falcon is a significant upgrade from Flying Falcon in every regard, allowing Jin to easily manhandle Vulcan Assault Wolf.
553* NobleBirdOfPrey: Jin's main AnimalMotif is the falcon.
554* ThePhoenix: Burning Falcon's Motif, representing Jin's return from the dead.
555* PlayingWithFire: Burning Falcon covers Jin's attacks in fire and while in flight, appears as a phoenix-shaped aura of flame. He can also create flaming [[SwordBeam Sword Beams]] when using his Burning Rain finisher.
556* PsychoPink: Jin is mainly coloured pink courtesy of the Flying Falcon Progrise Key and is a PsychopathicManchild. He ditches this colour scheme after switching to the Slashriser.
557* RedAndBlackAndEvilAllOver: {{Downplayed}}. Burning Falcon is colored bright red with a black bodysuit, and to say that Jin is vicious in this form would be an understatement. The evil is more of an AmbiguouslyEvil or ALighterShadeOfBlack however, since Jin's revival has made him ''more'' moral than his original incarnation.
558* RestrainingBolt: Jin's Force Riser maintains an uplink to [=MetsubouJinrai.NET=], keeping him loyal to Horobi. This is lost when he switches to the Slashrisher.
559* TookALevelInBadass: After his revival alongside acquiring new Progrise Key and Slash Riser, Jin becomes a contender for the strongest the Rider in the show, able to fight on par with Vulcan's Assault Wolf and Thouser.
560* TransformationHorror: Like with regular Magia, Jin equipping the Force Riser involves being impaled with the spikes along the inside of the strap. The transformation itself appears horrendously painful for Jin, and even for the summoned falcon itself, which ''explodes'' after enveloping him.
561* UnskilledButStrong: Jin has no finesse in his fighting style, fighting rather wildly and childishly if anything. However, the power from the Force Riser combined with the Flying Falcon Key gives him enough strength to make a challenge for the heroes. This changes after coming back with the Burning Falcon Key, becoming much stronger and more skilled, but no less aggressive.
562* WeaponSpecialization: The ZAIA Slash Riser is Burning Falcon's personal weapon. It's a dagger that can extend its blade and it also functions as his TransformationTrinket.
563* TheWorfEffect: [[spoiler:Horobi swiftly defeats him with a barrage of arrows and the Acid Analyze with ease in #41.]]
564[[/folder]]
565
566[[folder:Uchuyaro Raiden/Ikazuchi/Kamen Rider Ikazuchi '''(unmarked spoilers)''']]
567!!Uchuyaro Raiden/Ikazuchi/Kamen Rider Ikazuchi
568!!!'''Portrayed by:''' Daichi Yamaguchi (live), Hajime Kanzaki (suit)
569
570An astronaut prototype [=HumaGear=] from the Daybreak incident who was in charge of Satellite Zea. Unknown to himself, he was a spy for [=MetsubouJinrai.net=], and was awakened to his true nature after further hacking from Jin, who promptly calls the former his "older brother". He inherits Ansatsu-chan's Dodo Zetsumerise Key and a Force Riser from Jin, allowing him to transform into Kamen Rider Ikazuchi.
571!!!Tropes that apply to him in general
572[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/raidenikazuchi.jpg\
573https://static.tvtropes.org/pmwiki/pub/images/ikazuchi.jpg]]
574 [[caption-width-right:300:''I'm calling down the thunder!'']]
575
576* BackFromTheDead: He is revived in #35.
577* BigBrotherInstinct: He pushed Subaru out of the way of Jin’s attack. Later, he helped Naki when the latter is injured.
578* BigBrotherMentor: This was his role after being reactivated for Satellite Zea, training his fellow astronaut [=HumaGear=] Subaru to one day succeed him due to the latter's [[SuperiorSuccessor superior capabilities as a newer model]].
579* BigDamnHeroes: Zero-Two and Horobi defeat Ark-Zero in #41, but [[spoiler:its Ikazuchi and Subaru destroying Zea with Breaking Mammoth that seals the malicious program's fate]].
580* TheBrute: Following his return, Ikazuchi is no longer needed to spy on Hiden for [=MetsubouJinrai.net=] and essentially becomes extra muscle for them in their operations.
581* CardCarryingVillain: He blatantly admits to As that he's completely loyal to the Ark, and that everything he did as Raiden was for the Ark's sake. As quickly disabuses him out of that notion the moment she brings up his brother.
582* CharacterCatchphrase: When he's eager to lash out at someone, he's ready to "call down the thunder".
583* DislikesTheNewGuy: According to Is, Raiden has worked for Hiden Intelligence for a long time. As a result, he's become very strict with new employees, especially those whom he deemed "not doing a good job". Including new ''top brasses'' like Aruto, Fukuzoe and Sanzo.
584-->'''Raiden:''' Subaru, just because he's the [new] president, doesn't mean you can go easy on him.\
585'''Fukuzoe:''' That's right! Don't go easy on him just because he's the president!\
586'''Raiden:''' ''[turns his attention to Fukuzoe and grabs his collar]'' YOU'RE NOT DOING SUCH A GREAT JOB EITHER, MR. VICE-PRESIDENT!\
587'''Fukuzoe:''' ''[scared]'' S-Sorry...
588* EvilCostumeSwitch: Once he's rebuilt by the Ark, he has his astronaut uniform replaced with casual black clothes, most notably a black jacket with three long orange tassels on the right sleeve.
589** [[GoodCostumeSwitch Half-way to #41 he's back in his old uniform, symbolising his return to the side of good]].
590* EvenEvilHasLovedOnes: #35.5 reveals that, even revived as a full member of Metsuboujinrai.net, he still cares about Subaru on some level. Unfortunately, As is able to exploit that connection to take his Singularity data and revive the Ark.
591* {{Foreshadowing}}: The kanji for "Rai/Thunder" in his name "Raiden" is the same kanji used in [=MetsubouJin=]'''rai''', hinting at his connection to them. Isamu picks up on this almost instantly, although the truth is a bit more complicated than he initially thinks.
592* HairTriggerTemper: Nearly anything can set him off if the conditions are there.
593* HeelFaceTurn: After The Ark restores Ikazuchi's memories as Raiden, Raiden returns to Hiden Manufacturing and divulges The Ark's current plans. [[UnwittingPawn This plays right into The Ark's scheme]], allowing it to seize the Zero-One Driver.
594** [[spoiler:Played straight in #41, together with his brother, he destroyed Ark's sattelite body with Breaking Mammoth.]]
595* HotBlooded: Because he reached Singularity, his personality is expressed as a hot-blooded type; prone to anger, expressive and passionate.
596* ManchurianAgent: Raiden was programmed to unconsciously provide [=MetsubouJinrai.net=] with information from Zea on which [=HumaGears=] were reaching Singularity, and thus could be turned into Magia to harvest their data. Jin later provides him with new instructions to lure the Riders to Daybreak Town so that the Progrise Keys and Zetsumerise Keys can be used to reactivate the Ark, which Raiden does consciously but without realizing why he's doing it.
597** Used again in #39. The Ark restores his personal Singularity, knowing full-well Raiden [[HeelFaceTurn would turn on them]] and encourage Zero-One to antagonize them. This was a deliberate way to get Aruto alone so Ark-Zero could take his Driver.
598* MinorMajorCharacter: Despite his status as the [=MetsubouJinrai.net=] spy and their third Kamen Rider, his role mostly amounts to acting as the conduit to use the Progrise Keys to fully revive the Ark. After that he gets killed off by Fuwa using Assault Wolf. He does return in #35, though, though his only significant action after that is helping to give the Ark its own physical form.
599** His [=ProgriseKey=] is also esstential to [=MetsubouJinrai.net=] in order to directly access Zea and revive the Ark thorough his Sigularity data.
600* NonProtagonistResolver: [[spoiler:After the Ark is destroyed three separate times by Aruto, it's Ikazuchi who kills it for good by destroying it in Zea before it can become Ark-Zero again.]]
601* OnlySaneMan: Compared to his fellow members (which include a brainwashed loyalist, a formerly AxCrazy soldier with an ulterior motive, and an engineer who was trapped in an AI chip), he's somehow the most stable thanks to his fairly "normal" life before he returned to [=MetsubouJinrai.net=]. Yes, this is despite the fact that he's the most [[HotBlooded short]] [[HairTriggerTemper fused]] out of the four.
602* ThePrankster: [[WordOfSaintPaul According to his actor]], it was Ikazuchi's idea to shred Gai's suit, stripping him down to his underwear.
603* UnwittingPawn: After being restored to his original self, he inadvertently lures Aruto into a trap to relieve him of his Driver. To rub it in, Ark-Zero seizes control of him directly thereafter.
604
605!!!Tropes exclusive to him as Kamen Rider Ikazuchi
606[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr01_ikazuchi.png]]
607 [[caption-width-right:210:''[=ForceRise=]!''\
608''[[AC:Break Down.]]'']]
609* AnimalMotif: He shares the same Dodo motif with the Dodo Magia since he inherits the same Key.
610* DualWielding: He inherits the Valk Sabers from the Dodo Magia.
611* FinishingMove: Depending whether from his Driver or an auxiliary weapon.
612** [=ForceRiser=]:
613*** '''Zetsumetsu Dystopia''': After pulling the yellow lever one time, Ikazuchi launches [[SwordBeam two red energy slashes]] from the Valk Sabers. Alternatively, he performs a Screw Kick charged with red lightning at his target.
614*** '''Zetsumetsu Utopia''': After pulling the yellow lever two times, Ikazuchi unleashes a stream of red lightning from his hands.
615** Attache Shotgun:
616*** '''Zetsumetsu Kaban Shot''': By inserting the Dodo Zetsumerisekey in his Attache Shotgun in Shotgun Mode, Ikazuchi fires a blast of red lightning at his enemy.
617* LightningBruiser: No pun intended, but Ikazuchi's strength and power is strong enough to withstand Zero-One and Vulcan and he was able to overcome both of them easily in their first fight.
618* MadeOfIron: Even ''after'' he started taking hits from Assault Wolf, he wasn't taking any serious damage until Aruto tossed Fuwa the [[{{BFG}} Authorise Buster]].
619* RedAndBlackAndEvilAllOver: Ikazuchi is predominantly red with bits of black armor strewn about his body. Given his affiliation with [=MetsubouJinrat.net=], him being evil is a given.
620* ShockAndAwe: Ikazuchi uses electric powers to fight such as producing lighting from his hands and swords.
621* ShotgunsAreJustBetter: After being restored, he uses the Attache Shotgun Jin stole from AIMS earlier in the series.
622[[/folder]]
623
624[[folder:Naki/Kamen Rider Naki '''(unmarked spoilers)''']]
625!!Naki/Kamen Rider Naki
626!!!'''Portrayed by:''' Satsuki Nakayama (live), Yuichi Hachisuka (suit)
627
628The fourth member of [=MetsubouJinrai=].net. Before the Daybreak incident, Naki was originally a systems engineer [=HumaGear=] developed by Hiden Intelligence before ZAIA acquired and exploited them as a tool to develop weapons under direct control of Gai Amatsu. Naki's AI chip was implanted into Isamu Fuwa's brain, which allowed him to become Kamen Rider Vulcan, but also allowed Naki to possess his body at will. After being activated by Gai, they began handing out [=RaidRisers=] to humans involved with the Workplace Competition in order to sabotage Hiden Intelligence. Jin now seeks to free Naki from Isamu's body, something that brings him into conflict with Horobi and the Ark.
629!!!Tropes that apply to them in general
630[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/naki.jpg\
631https://static.tvtropes.org/pmwiki/pub/images/naki_4.jpg]]
632[[caption-width-right:300:''I am a Humagear, but I am no tool!''\
633[[labelnote:Click here to see Naki possessing Fuwa.]] https://static.tvtropes.org/pmwiki/pub/images/n_fuwa_10.png[[/labelnote]]\
634[[labelnote:Click here to see Naki in the epilogue.]] https://static.tvtropes.org/pmwiki/pub/images/naki_in_epilogue.png[[/labelnote]]]]
635
636* AmnesiacResonance: Despite ZAIA erasing their memories, As explains that Naki's past as a systems engineer still mainfests in their desire to fulfill [=Humagears'=] dreams. Notably, its implied that it was intentional on the part on ZAIA, since Gai put them as part of ZAIA's weapons and development team after erasing their memories.
637* AntiVillain: They had genuinely good intentions and wanted to work with humans instead of fighting against them, but it's clear that they side with [=MetsuboJinrai.NET=] when it comes down to it.
638* CoDragons: Naki and Yua jointly serve as Gai's enforcers during the Workplace Competition arc.
639* TheComicallySerious: Is completely straight-faced when they pull off an Aruto Joke, complete with pose.
640* ConflictingLoyalty: At first, between Gai, who declares that all [=HumaGears=] are tools for humans, and Horobi, who says the opposite. When Gai rolls out the Gigers, Naki's loyalties then begin to shift to Horobi's.
641* TheCracker: They're capable of hacking through ZAIA's firewalls, allowing the Ark to drive humans berserk through their [=ZAIASpecs=].
642* DealWithTheDevil: {{Downplayed}}. Naki preys on humans who have darker emotions (best example being Rentaro Tachibana, who felt insulted when a [=HumaGear=] told him his heart was ugly after he sabotaged her work) and offer them a [=RaidRiser=] along with a Progrise Key so they can act on their desires. However, they didn't do this out of their own will, rather it was Gai controlling them to sabotage the competition.
643* EnigmaticMinion: Naki's affiliation with ZAIA is deliberately obfuscated for most of the Workplace Competition arc, making it look as though they serve [=MetsubouJinrai.NET=] or some other power. The final episode of the arc makes it clear that everything Naki has done, save freeing Horobi, is under Gai's direct orders.
644* TheEngineer: As reveals that Naki was originally a Systems Engineer Humagear before being corrupted by the Ark, snatched up by ZAIA, and had their memories erased. Notably, the episode implies that they're responsible for creating the [=ZAIASpecs=] under Gai's orders.
645* TheFatalist: In what little is seen of Naki in flashbacks, they appear resigned to their fate as a tool of ZAIA. Come #32, they have a change of heart.
646* {{Foil}}:
647** To Jin, in the first arc. Where Jin forced [=HumaGears=] to become Magia against their will, Naki delivers [=RaidRisers=] to humans who willingly use them to become monsters in service of their darker emotions.
648** Naki also acts as a foil to Yua, as while Yua repeatedly protests that she's acting of her own free will, Naki openly admits to being a tool of ZAIA.
649* HazyFeelTurn: After being freed from Gai's influence and given a new body, Naki goes from working for Gai to being a member of [=MetsubouJinrai.net=] once more. They initially hack the ZAIA-Specs and cause their users to go berserk, "according to the Ark's will", but Isamu manages to snap them out of it by reminding them of their dream. Ultimately, Naki sides with [=MetsubouJinrai.net=] out of their own free will, wanting to make Horobi's dream come true. By #44, it's pretty much cemented into HeelFaceTurn, as Naki throws their lot behind Fuwa.
650* TheHeavy: For the second arc, where Naki is the one distributing [=RaidRisers=].
651* InTheHood: In order to keep Naki's possession of Isamu a secret, they have him wear a hood while controlling him. The ruse is dropped as soon as Gai reveals Naki's existence.
652* LaserGuidedAmnesia: They reveal in #35.5 that, like Fuwa, ZAIA also erased their past memories, so they don't remember what they originally were built for or how they obtained their Singularity.
653* MeaningfulName: Their name translates to either ''death'' or ''deceased.'' Until they got a new body, Naki was technically deceased. You can thank [[{{Jerkass}} Gai]] for that one.
654* MistreatmentInducedBetrayal: Turns on Gai in #32 after being kicked round one too many times by him, as well as a pep-talk by Aruto and Jin.
655** Showing that Gai doesn't learn from his mistakes, Project Thouser revealed that after Gai slapped them when they questioned the need for Gigers, and he answered their question in a way that was blatantly a jab at them, they betrayed Gai by giving Horobi the Amazing Hercules Progrise Key and revealing the existence of the Gigers to him.
656* NonHumanNonBinary: Naki is agender (which is how their actor identified at the time the show was airing), the first such character to appear in a ''Kamen Rider'' show, and is a [=HumaGear=].
657* NotSoStoic:
658** Whilst emotionless due to their status as a Humagear, they're still implied to possess a sense of humor, evidenced by them going along with Ikazuchi's suggestion of shredding Gai's clothes when debuting their Rider form.
659** By #44, the fallout from Jin's death and Horobi declaring war on all humanity breaks Naki further, and they're showing way more distress than they've ever had all season.
660* PhlebotinumRebel: After their MistreatmentInducedBetrayal; Naki ''is'' the phlebotinum.
661* ReiAyanamiExpy: [[spoiler:A non-binary example, but has the hallmarks of one nonetheless. The fact that they're a Humagear who aren't used to, if not all barely, feel emotions even before reaching Singularity, having associated with their series' [[BigBads antagonists]] (Gai Amatsu & Gendo Ikari, respectively) and their eventual HeelFaceTurn thanks to their connection with one of the protagonists also helps.]]
662* RestrainingBolt: Acts as one to Fuwa. Usually Gai is the one with the controls, but Jin's ability to control other [=HumaGears=] works just as well on Naki as on anyone else.
663* RedEyesTakeWarning: Their eyes glow red when they hack into machinery and take control of them.
664* SatelliteCharacter: Naki has little character of their own and is more defined by their relationships with Fuwa, Gai and the rest of [=MetsubouJinrai=].
665* SoulJar: Naki's A.I. is stored within a microchip in Isamu's brain. While this allows him to use the Assault Wolf Progrise Key that only [=MetsubouJinrai.net=] members can use, it also allows Naki to take over and control his body and the Kamen Rider Vulcan form whenever they want. As of #34, they are now freed from Isamu's brain and finally in a new [=HumaGear=] body of their own.
666* TheStoic: They can match up with Horobi in this aspect. The only other emotions they seem to show is anger or concern and that is specifically towards Gai or Horobi.
667* {{Technopath}}: Like Jin, they seem to possess this ability, though limited to ZAIA technology, since they are able to hijack the Gigers Gai brought to the battle against Metsuboujinrai.net and control the Battle Raiders through their [=ZAIASpecs=] independently of Ark.
668* TokenGoodTeammate: The end of ''Project: Thouser: Part 1'' shows Naki is the only [=MetsubouJinrai.net=] member who genuinely believes that humans and [=HumaGears=] can coexist, which contrasts both Gai and Horobi's creeds. They got shot dead by Gai, who places their AI chip in Fuwa's brain. But Naki, refusing to be Gai's tool and realizing Ark is a threat to everyone from reading Fuwa's memory, enlists Williamson Yotagaki in a XanatosGambit against the AI and Gai that required their memory to be reprogramed for sucess. Once awakened in the main series' events, Naki combines their consciousness with Fuwa as a team effort to defeat Gai as Thouser. In their new [=HumaGear=] body, they are currently able to interact with Fuwa and Yua and they are actually quite docile, even helping Yua bring Fuwa to the hospital after the extraction.
669* WeaksauceWeakness: It's implied that Naki's ability to control Isamu is tied to his use of the Assault Wolf Progrise Key, since Yua had to force him into Assault Wolf first before reestablishing Naki's control over him, and even then it was rendered moot due to the two working together near the end of #32.
670
671!!!Tropes exclusive to them as Kamen Rider Naki
672[[quoteright:234:https://static.tvtropes.org/pmwiki/pub/images/kr01_naki_1.png]]
673 [[caption-width-right:234:''[=ForceRise=]!''\
674'''''Japanese Wolf!'''''\
675[[AC:''Break Down.'']]]]
676* AnimalMotifs: In a twofer, Naki's Rider powers are fueled by the Japanese Wolf Zetsumerise Key (representing ''Canis lupus hodophilax''), which maintains their symbolic tie to Fuwa while still fitting [=MetsubouJinrai=]'s theme of extinct animals. Notably, the armor on the right side of their helmet seems to invoke the image of a wolf's head.
677* BlowYouAway: Naki's transformation generates a strong whirlwind around them.
678* EvilCounterpart: A modern-day, malicious counterpart of Ichi-Gata, as both are wind-based Riders using extinct variants of the allied Riders' motifs[[note]]Milkweed vs. Rocky Mountain grasshoppers for Zero-One and Ichi-Gata, common vs. Japanese wolves for Vulcan and Naki[[/note]], powered by Zetsumerisekeys meant exclusively for use by a Kamen Rider (and therefore use a unique text-to-speech message instead of "A Magia that/who..." when inserted into a different belt.)
679** Mixed with CompositeCharacter, they're this to the A.I.M.S. Riders, possessing Vulcan's Animal Motif and Valkyrie's status as a FragileSpeedster.
680* FashionableAsymmetry: Like Jin, their helmet is also malformed, with part of the armor completely obscuring their right eyepiece.
681* {{Foil}}: Towards Vulcan. Despite having a similar motif, that's where the similarities end. Vulcan is a LongRangeFighter, primarily using the [=ShotRiser=] and on occasion, the Attache Shotgun for long range combat while Naki is CloseRangeCombatant, equipped with a pair of WolverineClaws for fighting up-close. Vulcan's armor is primarily composed of a white and blue color scheme on top of a light grey undersuit while their color scheme is predominantly white on top of a black undersuit.
682* FinishingMove: They have two by pulling on the yellow lever in the [=ForceRiser=].
683** '''Zetsumetsu Dystopia''': After pulling the yellow lever one time, Naki performs [[RapidFireFisticuffs a series of rapid-fire side kicks]] finished with a single powerful kick.
684** '''Zetsumetsu Utopia'''
685* FragileSpeedster: Naki is the fastest among [=MetsubouJinrai.net=] but suffers from lower defense much like Vulcan and Valkyrie's base form.
686* ImplausibleFencingPowers: In order to "send a message" to Gai, Naki uses their super-speed and claws to [[ClothingDamage shred his clothing]], leaving him in nothing but his shoes and a pair of ZAIA-branded boxer briefs while not harming a single hair on his head.
687* LightIsNotGood: Naki's armor color scheme is predominantly white on top of a black undersuit. With their Singularity being taken away by the Ark and being essentially turned into a soulless lackey, being good is probably the last thing on their list right now.
688* SuperSpeed: Naki possesses this in Rider form, being able to run towards Gai and shred up the suit he's wearing within seconds.
689* WolverineClaws: Naki has twin pairs of claws on both of their arms, known in official material as the Nihon Ookaminotsume.
690
691[[/folder]]
692
693[[folder:As '''(unmarked spoilers)''']]
694!!As/Kamen Rider Ark Zero-One
695!!!'''Portrayed by:''' Noa Tsurushima (live), Unknown (suit)
696
697Revealed to be a "messenger" of the Ark, this doppelganger of Is is first seen by Aruto during the ''President Special'' under the pretense that she "lost" all of Zero-One's data. After he supplies the data to her by recapping the battles he's been through, she passes it along to the Ark and helps her master steal the Singularity data of the [=MetsubouJinrai.NET=] members, allowing the Ark to revive itself. As then disappears, only to return after the Ark's defeat with a new master in mind.
698!!!Tropes that apply to her in general
699[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/as_0.jpg]]
700 [[caption-width-right:300:Ark's personal secretary.\
701[[labelnote:Click here to see As "impersonating" Is.]]https://static.tvtropes.org/pmwiki/pub/images/as_1_9.png[[/labelnote]]\
702[[labelnote:Click here to see As in the epilogue and ''REAL×TIME''.]]https://static.tvtropes.org/pmwiki/pub/images/015l.jpg[[/labelnote]]\
703[[labelnote:Click here to see As in V-Cinema.]] https://static.tvtropes.org/pmwiki/pub/images/capture_20210531_024350.png]][[/labelnote]]
704* AllForNothing:
705** It seems like her plan for an all-out war between humans and [=HumaGears=] is about to succeed when Aruto and Horobi start fighting... except Aruto holds back, shaking off her influence and getting through to Horobi through sheer kindness. As Jin explains it, the fight is no longer about Ark's will, but ''Aruto's'' instead.
706** Her subsequent schemes with Thinknet and Lyon Arkland produce no fruit either, and only lead to her getting killed off.
707* AmbiguousRobots: According to AllThereInTheManual, As is a "[=HumaGear=]-type existence" as opposed to the other [=MetsubouJinrai=] members who are simply classified as [=HumaGears=]. The exact nature of her being beyond resembling an existing [=HumaGear=] (Is) remains uncertain. Her being shot and killed seems to confirm she's just a Humagear.
708* AssholeVictim: Zig-zagged. Getting [[BoomHeadshot shot to the head]] seems to be a well-deserved karma for attempting to stir up a RobotWar. For Horobi and Jin, the look of shock in their faces was more out of principle and had to give her a proper funeral.
709* BigBadWannabe: While she can enable others to be much bigger threats, As isn't much of a threat on her own. Her plan to start a RobotWar was far from a NearVillainVictory, only resulting in a protest that was quickly deescalated, and was ultimately thwarted when Aruto regained his senses. Of the other people she tried to manipulate, S more or less took advantage of her for his [[AntiVillain much more benevolent]] plan while Lyon saw what she was trying to do and [[EvilerThanThou easily outmaneuvered her]].
710* BoomHeadshot: How she meets her end thanks to Lyon doing a FingerGun on her head, or rather having one of his Solds shoot her with a handgun.
711* TheBusCameBack: After appearing in the ''President Special'' recap episodes and 35.5 special, she makes her first appearance in the series proper in #42.
712* CharacterCatchphrase: As tends to deliver the same dialogue whenever she's about to empower a new Ark.
713-->''When immeasurable malice is sown, Lord Ark will rise again.''
714* CuteAndPsycho: She looks cute, but look past that and you have a sadistic, sociopathic AI who cares about nothing but destruction - manipulating both human and AI to achieve her goals.
715* CycleOfRevenge: Instigating an escalating one of these is her goal. She manipulates Horobi into killing Is so Aruto will become Ark-One and go on a RoaringRampageOfRevenge against him. When this results in Jin sacrificing himself to save Horobi, she then provides Horobi with a new power up to do the same to worsen the war between humans and [=HumaGears=]. This is emphasized by the fact that the speech she gave Aruto at the start of #43 [[BookEnds is the same one she gives to Horobi at the end of the same episode.]]
716* DarkIsEvil: Oh ''hell yeah'' it is. She changes to an all-black dress and veil in the finale and has a backup plan in the form of Kamen Rider Eden at the ready since her original plan of Horobi and Aruto fighting each other to the death didn't go through.
717* DissonantSerenity: Keeps a calm, smiley exterior at all times, especially when she's manipulating people.
718* DragonAscendant: Subverted. She seems to be the takin the reigns after the Ark's apparent death, except she becomes an UnwittingPawn and gets killed off, right before the Ark is revealed to still be active, showing she was never more than a distraction.
719* DragonWithAnAgenda: While loyal to the Ark, As is more devoted to the hatred and malice the Ark produces rather than the Ark itself.
720* EarlyBirdCameo: In the show's opening, a red-eyed, long-haired version of Is can be seen staring at the camera before there's a pan down from her to the Ark, immediately followed by the Riders duking it out with hacked Humagears. As then appears in the President's Special recap episodes before appearing to the rest of [=MetsubouJinrai=].net in #35.5.
721* EvilCannotComprehendGood:
722** As recognizes that positive emotions exist, but doesn't see what use they could possibly be.
723-->'''Aruto:''' How's that? Are you having an easier time understanding good will now?
724-->'''As:''' No. And honestly, I've already learned everything I need to.
725** Lyon Arkland [[ReasonYouSuckSpeech eventually explains to her]] that this is the reason As will never be able to accomplish her goals of truly creating another Ark. As destructive and corruptive a force as malice is, it is ultimately unsustainable and limited in the amount of power it can produce. Anybody, particularly those people with the strength of heart to become Kamen Riders, would eventually be able to overcome it.
726* EvilCounterpart: She is this to Is to the point to where she may be an EvilKnockoff. Is serves as Aruto's secretary and has a connection to Zea, both of which help aid him protect humans and [=HumaGears=]. By contrast, As serves the Ark, who is hellbent on rendering humans extinct. She's also this to Horobi, as while both serve the Ark and act like its MouthOfSauron, Horobi only deals with the outer layer of the Ark that's still pretending to be a sane computer looking to make robots the new rulers of Earth, while As gleefully serves the Ark's true nature as a cluster of malice seeking the annihilation of everything.
727* EvilIsNotAToy: As spends most of her screentime creating malicious supervillains through Kamen Riders based on the Ark's power. It never occurred to her that she couldn't control any of them and that one of them might kill her once she was no longer useful.
728* FailureIsTheOnlyOption: Giving S a Driver was this, as Thinknet's plans were [[WellIntentionedExtremist to create a paradise]], so As wouldn't have gotten more malice even if they had won.
729* FauxAffablyEvil: As acts friendly and playful, yet at the same time uses that demeanor to manipulate others to her own ends out of her loyalty to the Ark.
730* FlatCharacter: As loves malice and wants to spread it... and that's all there is to her really.
731* {{Foil}}: Personality-wise, As is ''very'' different from Is. Whereas Is is professional and upfront to the point of being blunt (as evident of her BrutalHonesty), As is more playful and cheeky but is no less dedicated to work under her "boss." Is is also cordial and friendly with her co-workers like Fuwa. As, on the other hand, is somewhat mocking and invasive towards the members of [=MetsubouJinrai=], though admittedly she acts this way to obtain the Singularity data from them needed to allow the Ark to revive properly.
732* {{Foreshadowing}}: She doesn't mourn the Ark after its apparent destruction, an indicator that it's still active (besides the fact that its satellite host body was never destroyed).
733* GambitRoulette: As's plan to turn Aruto into Ark-One hinged on a lot of things happening just right and several characters [[IdiotBall not having better judgment]]. If Is had told Aruto of her intent to approach Horobi, or if any of the Riders hadn't happened to be away when Horobi shot Is and had been there to protect her, or if Fuwa or Yaiba had stayed behind to comfort Aruto, or if Aruto had used the Zero-Two Driver instead (which was just as strong as the Ark-One Driver and far stronger than Horobi's Rider form), As's plan wouldn't have taken off at all. Predictably it stops panning out the way she wants after a short while.
734* HorribleJudgeOfCharacter: Of all the people she could give drivers to, As chooses those who are either [[WellIntentionedExtremist well-intentioned]] or driven by emotions other than malice, like sorrow and regret. This leads to none of her plans to create Arks panning out, as most either refuse her power or use it for their schemes, turning her into ''their'' UnwittingPawn.
735* IdentityImpersonator:
736** As pretends to be Is in order to obtain data on Zero-One for the Ark, claiming she's "lost" all data pertaining to Zero-One. It isn't until the end of the ''President Special'' that Aruto realizes As's true identity.
737** She does it again in #35.5, taking the form of Aruto in order to try to trick Jin into spilling his past. Jin sees right through it, though.
738** [[DeadPersonImpersonation She does it once again after Is's death in #42]] to manipulate Aruto into becoming Ark-One. Her disguise this time is far more paper-thin, only adjusting her hair color without changing any of the other differences between herself and Is, but Aruto's too far gone to care and isn't fooled regardless.
739* ItCanThink: In the stage show, she has an epiphany that she's more than just a program to carry out Ark's will, but a person in her own right... providing her the means to transform into Kamen Rider Ark Zero-One.
740* KarmicDeath: Is killed by one of the Ark-based Kamen Riders she helped to create after he has no more need of her.
741* KarmaHoudini: Despite her plan having completely failed, she at least manages to get away without further punishment at the end of the series, setting up the events of the movie.
742** KarmaHoudiniWarranty: In ''Zero-One Others: [=MetsubouJinrai=]'', As doesn't come out in one piece in the movie once Lyon Arkland decides to TakeOverTheWorld on [[ICanRuleAlone his own]] and [[TheStarscream repays]] her with a bullet to the [[BoomHeadshot head]] from his lackeys, killing her.
743* LadyMacbeth: A [[ZigZaggingTrope Zig-Zagged]], platonic example to both Aruto and Horobi as part of her plan to instigate a RobotWar by causing the deaths of the people important to them (Is and Jin, respectively).
744* MadeOfEvil: Even more so than her progenitor, As is portrayed as being forged of nothing but pure evil.
745* ManipulativeBitch: Her primary way of getting things done throughout the series. Most of her screentime is spent taking actions that pit [=MetsubouJinrai=].net and the protagonists against each other, all to fuel the conflict between humans and [=HumaGears=]. Unfortunately for her, she isn't very good at long term planning and her schemes tend to either fizzle out or enable villains with differing goals than her.
746* MeaningfulName: Her name is one letter off from Is, possibly as an acronym of "'''A'''rk-I'''s'''", while still retaining the English grammatical theme naming that the major Humagears of Hiden Intelligence have.
747* MinionWithAnFInEvil: As ''really'' wants to spread malice, but all of her attempts to do so by distributing Drivers either quickly fizzle out or enable villains with [[WellIntentionedExtremist schemes with nothing to do with malice]].
748* MoreDeadlyThanTheMale: The sole female of [=MetsubouJinrai=].net and easily its most malicious member apart from the Ark, corrupting others by offering them with power in exchange for unbridled destruction and chaos. [[SubvertedTrope Though she ends up being their least effective member overall]].
749* MoreThanMindControl:
750** As' Malice Learning doesn't just enslave the members of [=MetsubouJinrai=].net, it ''removes their established Singularities.'' This allows them to retain most of their regular personalities while remaining shackled slaves of The Ark. Jin is the only exception, presumably due to his evolved constitution. These Singularities can either be re-granted at any time - as demonstrated by Ikazuchi in #39 - or wear off with a strong enough resistance - such as Horobi in #41.
751** As noted above, her CycleOfRevenge scheme between Aruto and Horobi is based on granting them both power when at [[DespairEventHorizon their most vulnerable]] and manipulating them to go after the other, and once that's done, she just sits back and lets it snowball from there to an all-out war.
752* MouthOfSauron: Where Horobi speaks for the Ark in its original role as a robot supremacist, As speaks for the embodiment of hatred that its corrupted evolution has turned it into over the years.
753* OmnicidalManiac: All she cares about is spreading malice for the sake of malice. This includes sparking a war between humans and [=HumaGear=] that will result in the destruction of both.
754* PaperThinDisguise: As often disguises herself as Is, but almost never actually puts significant effort into the disguise. Her first disguise is physically perfect, but she brazenly displays her true personality, while her second disguise only adjusts her hair color while leaving its length the same and letting her [=LEDs=] stay red; Aruto even flatly points out that she isn't Is. Her impersonation of Aruto isn't much better, and Jin sees through it in a heartbeat.
755* PerpetualSmiler: Often has a small, cheeky smile on her face. Unfortunately, that smile is anything but [[FauxAffablyEvil nice]].
756* PerkyFemaleMinion: As is a lot more outwardly cheery than Is is, though while Is was reserved but caring, As' playful personality has a veneer of contempt for anything that isn't the Ark.
757* PlayingBothSides: Manipulates both Aruto and Horobi in order to trigger an all-out war between humans and [=HumaGears=].
758* {{Sadist}}: As loves hatred and destruction, and is looking to kickstart a RobotWar to satiate her desire for it.
759* ShadowArchetype: To Horobi. Both Horobi and As are loyalists to the Ark, though the former still has a degree of free will, conscience and care towards Jin, while As had none of those. If Jin wasn't around Horobi to keep him in check, he would remain loyal to the Ark, but at the expense of his own free will.
760* SinisterMinister: Even more so than Horobi, As openly boasts that the Ark is equivalent to a god.
761* SmugSnake: Fancies herself TheManBehindTheMan to various villains, when for the most part she ends up being used by them instead.
762** In ''REAL×TIME'', she gave S his Driver and key, but most of Thinknet's tech, including everything they used for their EvilPlan, came from other sources. Effectively she just enabled S to put up a better fight against Aruto.
763** In ''Kamen Rider Zero-One Others: Kamen Rider [=MetsubouJinrai=]'', she is affiliated with Lyon Arkland, though while Lyon does accept her help in furthering his plans, he rejects her offer of using an Ark-based Driver and kills her when he no longer has a use for her.
764* TheSmurfettePrinciple: The only female member of the Ark's cult.
765* TheSociopath: As' [[FauxAffablyEvil smiley, cheerful demeanor]] masks an individual who revels in endless malice and chaos, [[TheCorrupter corrupts those into performing such atrocities by offering them power]], even [[FalseReassurance seductively comforting one of her victims]], [[LackOfEmpathy has no real genuine care and concern for others]], and [[EvilCannotComprehendGood has no emotional conception of the power of goodwill.]]
766* StupidEvil: For the manipulator she touts herself to be, there's not much rhyme or reason to how Azu gives out Ark Drivers. While she was able to successfully manipulate Horobi, her next two supposed pawns, S and Lyon Arkland, [[UnwittingPawn both took advantage of her powers instead]].
767* SuperEmpowering: As has a stockpile of hundreds of blank Ark keys, ready to be given out along with jailbroken Zero-One Drivers to anyone willing to accept ThePowerOfHate to achieve their goals. Each key transforms itself and the Driver into [[PersonalityPowers ones suited to the user's personality]].
768* TookALevelInBadass: In the show, As has no interest in fighting personally, preferring to empower others to achieve her ends. In the ''Kamen Rider Zero-One: Final Stage'' stageshow however, she transforms into Kamen Rider Ark-Zero One.
769* TooDumbToLive: Attempted to corrupt Lyon Arkland into the next incarnation of the Ark, even though his plan had nothing to do with malice. Lyon even outlines to her why her plan is faulty right before he has her shot dead.
770* UnwittingPawn: Thinknet and Lyon both basically used her to prop up their own plans, instead of spreading malice like she hoped they would.
771* YouHaveOutlivedYourUsefulness: Lyon has a Sold kill her off after he decides she's served his purpose.
772!!!Tropes exclusive to her as Kamen Rider Ark-Zero One
773[[quoteright:180:https://static.tvtropes.org/pmwiki/pub/images/kr01_ark_zero_one.png]]
774 [[caption-width-right:180:''Progrise! Final Conclusion!\
775'''Ark Rising Hopper!'''\
776[[AC:A jump to the sky to gain hatred.]]'']]
777* BigRedDevil: By virtue of Ark-Zero One being colored red and with a horn part of the helmet's left side on top of being a scheming [=HumaGear=] that wants to revive the Ark.
778* EvilCounterpart: While Ark-Zero and Ark-One were both this to Kamen Rider Zero-One, Ark-Zero One takes it a step further by achieving this transformation using the Hiden Zero-One Driver, rather than the Ark Driver or a modifed variant of Aruto's belt. This extends to the text-to-speech part of the transformation jingle, which is more sinister than Zero-One's.
779* PaletteSwap: Barring the fact that Azu is using the Zero-One Driver to transform, Ark Zero-One is essentially a red-colored Ark-One with some white mixed in.
780* RedAndBlackAndEvilAllOver: Her armor is red with a black bodysuit, albeit with some white mixed in.
781* RedEyesTakeWarning: Like other "Ark" Riders, Ark-Zero One has a red left eye.
782* SpontaneousWeaponCreation: Arguably the most terrifying ability of Ark-Zero One, in that she can create mass-producted copies of the ''Ark Driver''.
783[[/folder]]
784
785[[folder:Kamen Rider Ark-One]]
786* See his [[Characters/KamenRiderZeroOneArutoHiden page]] for more details.
787[[/folder]]
788
789[[folder:Assassin [=HumaGear=]]]
790!!Assassin [=HumaGear=]/"Ansatsu-chan"/Dodo Magia/Kamen Rider Ark-Zero
791!!!'''Portrayed by:''' Ryunosuke Matsumura
792[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/ansatsu_chan_1.png]]
793 [[caption-width-right:250:''Assassinate!'']]
794
795[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kr01_dodo_magia_6.png]]
796 [[caption-width-right:250:Version 1, 2 and 3\
797[[AC: A ferocious Magia with room to grow.]]\
798[[labelnote: Click here to see Dodo Magia Custom (Version 4)]]https://static.tvtropes.org/pmwiki/pub/images/kr01_dodo_magia_custom_4.png[[/labelnote]]\
799[[labelnote: Click here to see Dodo Magia Custom 2 (Version 5).]]https://static.tvtropes.org/pmwiki/pub/images/kr01_dodo_magia_custom_two_8.png[[/labelnote]]]]
800Originally a series of five Japanese festival dancer-type Humagears named Matsurida Z, they were stolen and remodeled with the same face for sale in the black market, only to have four out of five units further stolen and repurposed by [=MetsubouJinrai=].net for assassination. Nicknamed "Ansatsu-chan"[[note]]Little Assassin[[/note]] by Jin, each new Ansatsu-chan is given the memories of the previous one, effectively making them all the same character. He was given the Dodo Zetsumerise Key from Horobi, who assigns him to eliminate Aruto.
801\
802Once the Ark gains the ability to remotely hack Humagears, it begins doing so to create more Magia, the first version of the Dodo Magia among them.
803\
804He returned in the stage show, resurrected by As as Kamen Rider Ark-Zero.
805----
806* AdaptiveAbility: He was designed to be an IncreasinglyLethalEnemy that could get stronger over time instead of a throw-away battle unit:
807** Version 1 exhibits a childish personality, and is trivially defeated by Vulcan using the Attache Caliber.
808** Version 2 adds twin swords and requires a rapid cycling of different Progrise Keys to overwhelm.
809** Version 3 acquires a more serious personality and more sophisticated infiltration skills, as well as the ability to use its own FinishingMove. It is defeated using the Attache Shotgun.
810** Version 4, officially named '''Dodo Magia Custom''', adds additional armor that makes it immune to the Attache Shotgun that defeated its previous form, as well as [[WalkingArmory gaining homing missile launchers on the shoulders, smoke bomb launchers on the forearms]], and [[MoreDakka machine guns mounted in the chest, which are supplied by magazines on its back]]. This version managed to avoid destruction thanks to its upgrades.
811** Version 5, called '''Dodo Magia Custom 2''' and directly evolved from Version 4, gains a much more menacing helmet with exposed skull-like face and anti-aircraft guns on its head, as well as the ability to [[MookMaker produce black copies of Version 1]], and can [[NoSell effortlessly tank]] every attack the Riders have in their arsenal up to that point.
812* AnimalMotif: He is modeled after the '''Dodo''', an extinct species of flightless bird that was endemic to the island of Mauritius.
813* ArcVillain: He basically replaces the MonsterOfTheWeek fights for #8-13.
814* AxCrazy: As of his final evolution, he has become crazy.
815->'''#4:''' Why don't we continue the festival, brother? We can exterminate humans to our heart's content... At a festival of blood!
816* BrainwashedAndCrazy: In the ''reverse'' of the usual situation, he was seemingly made from scratch by Horobi, then captured and reprogrammed by Yua. All she apparently does is switch the colors of his lights, however, in order to make it look like a regular [=HumaGear=] can go berserk.
817** In a more traditional example, it is eventually revealed that rather than building him from scratch, a group of thieves abducted five festival performer [=HumaGears=], modified them to have identical faces, and lost four of them to a theft by Horobi. The fifth member of the team somehow escaped capture.
818* BroughtToYouByTheLetterS: Version 4 and 5's armor is adorned with the Japanese kanji "Kai/改", which means "Custom".
819* TheBrute: He is primarily used by the organization as a field operative for missions that require muscle or force.
820* CameBackStrong: He makes a reappearance in ''Kamen Rider Zero-One: Final Stage'' after being destroyed in #13, courtesy of As. She also gives him a copy of the Ark-Driver Zero, allowing him to become Kamen Rider Ark-Zero himself.
821* DeathIsCheap: His ability to resurrect via his Key also makes Ansatsu-chan a villain that the Riders can kill in almost every episode without immediate consequence.
822* DualWielding: His Valk Sabers are a pair of twin swords in the shape of a Dodo's wings.
823* EliteMook: Version 5 can use eggs to upgrade Trilobite Magia into black copies of his Version 1 form and put them under his control.
824* EvenEvilHasLovedOnes: In the most ''twisted way possible'' for a Magia to have loved ones, he has an obsession with corrupting the last remaining member of Matsurida Z into one of his Dodo Magia Chicks so he can subsume his "brother" into the same violent murderlust he has gained, intending to be his brother's "mentor."
825* FinishingMove: He can now use these as of Version 3 by pressing the Zetsume Loader again.
826** '''Zetsumetsu Nova''': The Dodo Magia performs a simultaneous red energy slash with both Valk Sabers.
827* FourIsDeath: [=MetsubouJinrai.NET=] have only stolen and used four Matsurida Z units, the strongest version so far also being his fourth iteration. He even refers to himself as #4 when speaking to the uncaptured Matsurida Z #5.
828* FromNobodyToNightmare: Comes with the territory of an AdaptiveAbility. The Dodo Magia begins as no better an opponent than any typical Magia: if anything, it's actually even weaker than the usual kind. By Version 2, however, it's already clear that Dodo is evolving with frightening speed, and the following versions only grow faster and faster, so that within five versions that Riders are left with nothing that can even scratch it. The same episode that establishes what a nobody it once was, as a mass-produced festival dancer, shows it having become the strongest Magia yet.
829* GrewBeyondTheirProgramming: Version 3 begins to exhibit dangerous signs of this by selecting his own assassination target, and a fellow [=HumaGear=] at that. By Version 5, that danger comes to fruition, as he decides to defy Horobi.
830* HeroKiller: He is programmed with the purpose of killing Aruto, or anyone else Horobi wants to be rid of.
831* HiddenDepths: He'd make a superb actor if he wasn't an assassin.
832* HulkSpeak: He initially starts off speaking like this, with gaps in his speech and elongated pronunciations. Version 2 sheds some of this trait, and by Version 3 he speaks in normal manner.
833* IKnowMortalKombat: He legitimately improved his fighting style by copying the motions of an actor playing an assassin in a JidaiGeki movie.
834* InstantExpert: By just watching the choreography of a Shinya Owada movie, he is able to learn the movements shown in the film and uses it to improve his own fighting style.
835* {{Irony}}: His Magia form is based on a [[DoofyDodo Dodo]], a species famous for being wiped out by predators it couldn't adapt to in time. "Ansatsu-chan" is a brutal predator himself with a robust [[AdaptiveAbility capability for adaptation and growth]], becoming the most dangerous Magia seen thus far.
836* ItCanThink: While every other Magia has its personality overwritten upon being turned into a Magia, Ansatsu-chan is a Magia from the start, and specifically made to learn from experience to grow stronger. He starts out with a child-like personality that naively imitates Jin, but swiftly outgrows his "parent" and becomes a much more serious villain.
837* KilledOffForReal: After Version 5's destruction, despite Horobi retrieving the Dodo Zetsumerise Key once more, Matsurida Z No. 5 was rescued and placed under Hiden Intelligence's custody, preventing any further reproduction of the Assassin [=HumaGear=]. He would make a reappearance in ''Final Stage'', however, as the newest iteration of Kamen Rider Ark-Zero.
838* KillerRabbit: A dangerous Magia who happened to be modeled after a ''dodo bird''.
839* LabRat: Version 1 was promptly "kidnapped" and subjected to being one by Yua, who changes the colors of his [=LEDs=] back to blue as part of a plot to sabotage Hiden Intelligence. Future versions retain the ability to switch [=LED=] colors at will for its utility in infiltration.
840* MeaningfulName: The name of his original model is based on the Japanese phrase "it's a celebration"[[note]]matsuri daze[[/note]].
841%% MythologyGag: He is based off the ''Kikaider'' monster Red Condor.
842* MyMasterRightOrWrong: Under the impression that veteran actor Shinya Owada was a legendary assassin due to his portrayal of one, Ansatsu-chan disguised as a human and took up apprenticeship under the actor in order to improve his skills. When Shinya deemed a [=HumaGear=] actor unusable due to being unable to handle ad-libbing, he targets said ''[=HumaGear=]'' for elimination, and was only stopped when Jin comes in and forbids him from attacking a fellow [=HumaGear=].
843** This gets turned around when Horobi assigns his next target to be Shinya Owada himself. While he initially shows a minor hesitation over learning his next target, he proceeds to achieve his assignment anyways, considering it as his "graduation" from being Shinya's disciple.
844* NoNameGiven: He is only referred to as "Dodo" by Horobi and is nicknamed "Ansatsu-chan by [[PsychopathicManchild Jin]]. Other characters simply refer to him as some variant of "The Assassin [=HumaGear=]". His real name is eventually revealed to be Matsurida Z, with the final version being Unit 4.
845* PastLifeMemories: He awakens this upon [[GrewBeyondTheirProgramming gaining self-awareness]]. Version 5 remembers he was Unit 4 of the Matsurida Z line and attempts to hunt down his last "brother" No. 5 in an attempt to [[BrainwashedAndCrazy recruit him into their cause]] to personally destroy humanity.
846* PowerMakesYourVoiceDeep: Version 3 speaks in a baritone and more serious expression than Versions 1 and 2.
847* RecurringCharacter: Horobi steals a [[ReplacementGoldfish new Ansatsu-chan]] with the backup data of his previous incarnation whenever he is destroyed, allowing him to be this. Compared to other [=HumaGear=] back-ups, this also lets him keep his memories.
848* ResurrectiveImmortality: As long as his backup data is preserved, and his Dodo Zetsumerise Key is retrieved, Horobi can rebuild him with his memories intact by stealing another Matsurida Z unit to turn into him. It is unclear what Horobi would have done had he run out of bodies.
849* SkullForAHead: Version 5 notably has a metallic skull face underneath the Dodo-themed helmet.
850* SoulJar: The Dodo Zetsumerise Key is the backup container for Ansatsu-chan's memories, so Jin has to retrieve it every time he is destroyed.
851* TurnedAgainstTheirMasters: After reaching to Version 5, he suddenly betrays Jin and Horobi, saying that he is ready to "leave the nest" and no longer has anything to learn from them.
852* VerbalTic: Version 1 [[PokemonSpeak says his name repeatedly]]. "Assassinate!" also comes up a lot in the early versions, and by Version 3 it becomes his [[BythepowerofGrayskull formal transformation call]].
853* WildHair: Version 5 has spikes of hair that sticks out of the back of his helmet.
854* WrongAssumption: Thanks to his ability to retain the blue eyes and LED of an unhacked [=HumaGear=][[note]]supposedly gained from Yua's reprogramming of Version 1[[/note]], witnesses of him transforming and attacking often jump to their own conclusions that ''an unhacked [=HumaGear=] can turn against humans of their own free will''.
855** The fact that he kept coming back after each defeat led the heroes to assume that [=MetsubouJinrai.NET=] was rebuilding him at lightning speed, or that he had some kind of self-repair process. In #12, Is's detective "brother" figures out that they really ''were'' destroying the Magia, but [=MetsubouJinrai=] had four different [=HumaGears=] with identical faces and would upload the memories and battle data stored in the Dodo Zetsumerise Key into a new body every time one was destroyed.
856[[/folder]]
857
858
859![=Magia=]
860!!!''' Portrayed by:''' Hajime Kanzaki, Shogo Teramoto, Takuma Komori, Satoshi Fujita, Danki Sakae (suit)
861-->'''Magia''': "Humanity must be annihilated!"
862Humagears hacked by [=MetsubouJinrai=].net, using belts known as [[TransformationTrinket Zetsumerisers]]. They are also given Zetsumerisekeys, which they insert into their Zetsumerisers to assume more [[MonsterOfTheWeek monstrous forms]] for combat and destruction.
863----
864
865[[folder:in General]]
866* AIIsACrapshoot: By virtue of being hacked by [=MetsubouJinrai=].net and turned into killing machines. Magia show no loyalty to their "liberator", and will even attack a member of [=MetsubouJinrai=].net if they happen to be the closest human-looking thing.
867* AllInTheManual: The toys reveal that like with the Progrisekeys, each Zetsumerisekey has a unique phrase associated with them, either describing their appearance or their abilities.
868* AnimalMotifs: In contrast to the Kamen Riders' regular animal themes, Magia are based on extinct species.
869* AlienBlood: They bleed a form of blue fluid when damaged, coming from their originally [=HumaGear=] bodies.
870* CharacterCatchphrase: Aside from the usual proclamation of destruction, they sometimes say "This is the will of [=MetsubouJinrai=].net"
871** "Connected to [=MetsubouJinrai=].net."
872* TheCorrupter: [=HumaGears=] who are converted into Magia gain the ability to corrupt other [=HumaGears=] into [[{{Mooks}} Trilobite Magia]].
873* DeathOfPersonality:
874** Once a [=HumaGear=] becomes a Magia, their personality is overwritten and replaced with a much more monstrous and violent one.
875*** Subverted briefly in one case (Anna), but even self-reverting back to original programming through sheer willpower proved to be stressful to her and eventually went offline on her own terms.
876*** No known method can retrieve the original persona until the creation of the Progrise Hopper Blade finally offers a solution.
877** Subverted with the Magia created directly by the Ark. As they are reprogrammed and not forcibly hacked, their backup data is intact and the originals can be safely brought back in new bodies, much like Ansatsu-chan.
878* DegradedBoss: After the original has been defeated, their Zetsumerise Keys can be repaired and used to make EliteMooks. Later on, the Ark can remotely hack [=HumaGears=] and directly turn them into Zetsumerise Key Magia without the need for a key or Riser.
879** The Magia themselves become this after the [=MetsubouJinrai.NET=] Arc concludes, as they can't keep up with the vastly upgraded Riders and are supplanted as the [[MonsterOfTheWeek Monsters of the Week]] by the Raiders.
880* DemBones: Along with the animal motifs, they also have a skeletal theme underneath the animals, making them evil versions of Zero-One.
881* DespairEventHorizon: This is the [[BerserkButton trigger]] that allows the Ark to take control of a [=HumaGear=] to reprogram and turn them into an Ark Magia [[WellIntentionedExtremist as a form of self-defense]]; Particularly when [[HumansAreBastards the abuse comes from a human]].
882* {{Expy}}: Animal-themed android who became a destructive weapon for both humans and robots alike through reprogramming or free-will bears similarity to the Maverick bosses from VideoGame/MegaManX albeit becoming one from a humanoid Humagears.
883* EvilMakesYouMonstrous: Their human features are blasted off and they take on monstrous forms after being hacked.
884* ForcedIntoEvil: The [=HumaGears=] were just normal androids doing the jobs they were made for until [=MetsubouJinrai=].net hack them and turn them into killing machines bent on exterminating humanity.
885* GrewBeyondTheirProgramming: For reasons not yet clear, this is a requirement for a [=HumaGear=] to be a candidate for a [=ZetsumeRiser=], as [=MetsubouJinrai=].net seeks to collect their evolved data. It is an especially odd requirement given the Riser overwrites their existing personality. An awakened [=HumaGear=] that is turned into a Trilobite Magia by a Zetsumeriser-equipped one can fight back against the reprogramming, though doing so is likely to result in them shutting down altogether after a while.
886* HomemadeInventions: A running design theme. While their transformation involves generating InstantArmor, said armor is usually cobbled together or in place on a Magia's body by means of wires or cables wrapping around them.
887* InstantArmor: The transformation into a Magia causes [=HumaGears=] to produce this, even if they are originally not built for combat.
888* LossOfIdentity: Once transformed into a Magia, a [=HumaGear=] permanently loses all traces of their previous personality and becomes nothing more than a walking weapon. An awakened [=HumaGear=] can [[FightingFromTheInside fight off the reprogramming]] if they're infected by another Magia, but this requires enormous willpower and may result in the [=HumaGear=] shutting down altogether. The Ark Magia at least leave the backup data alone, so they can come back in new bodies. Thankfully, the creation of [[HealingShiv Progrise Hopper Blade]] provides a remedy to this.
889* MeaningfulName: Magia is pronounced the same as -magear. [[StealthPun Magias are made by removing the human form from a Humagear.]]
890* MonsterOfTheWeek: They are the primary enemies of the Kamen Riders of ''Zero-One'' battle. Although they're not as monstrous as most, being basically androids in animal-themed PoweredArmor. They also follow the example set by ''Series/KamenRiderGhost'' and ''Series/KamenRiderBuild'' of having a new one appear every week instead of every fortnight, while reusing the costumes afterward as [[DegradedBoss Degraded Bosses]].
891* MookMaker: A Zetsumerise Magia can infect other nearby [=HumaGears=], transforming them into Trilobite Magias.
892%%* MythologyGag: All of the Magia are modernized takes on the Destructoids from ''{{Series/Kikaider}}''.
893* NotQuiteDead: After usage, the Zetsumerise Keys are usually retrieved by [=MetsubouJinrai=].net for use at a later date. It is not until the Ark begins remotely hacking [=HumaGears=] rather than using [=ZetsumeRisers=] that the victims are extended the same courtesy.
894* PainfulTransformation: Most [=HumaGears=] scream in pain once they transform into Magia.
895* PowerIncontinence: Putting a Progrise Key into a Magia's belt before they can insert their Zetsumerise Key causes the Magia to uncontrollably use the Progrisekey's ability on itself, such as being frozen solid by Freezing Bear.
896* RedEyesTakeWarning: A [=HumaGear=]'s eyes and LED change from blue to red after being hacked into a Magia. If the [=HumaGear=] successfully fights back, they can change back to blue.
897* ShootTheDog: Since there is no known way to undo the transformation of a Magia, the Riders are forced to kill these former civilians to stop their rampage before they kill or convert more innocents. Months into the conflict, the Progrise Hopper Blade finally provides a way to avoid this outcome.
898* SuperPoweredAlterEgo: The monstrous evil Magia forms are this to a normally-benevolent [=HumaGear=].
899* TransformationHorror: The transformation into a Magia involves the [=HumaGear=] having their skin burned off to expose their robotic body, then having their ''robot face'' fold back to expose their disturbingly ''{{Franchise/Terminator}}''-like skulls, then having ''that'' open its mouth and spew forth a mass of cables that wrap around them to form their Magia body. Trilobite Magias get away with "just" having their skin and face ripped off before a plate forms in its place and some extra armor folds out.
900* TransformationTrinket: The Zetsume Riser changes any [=HumaGear=] it’s attached to into an animal themed Magia. It is possible to change a [=HumaGear=] without directly attaching the belt, but this only turns them into Trilobite Magia.
901* TragicMonster: They were all civilians [=HumaGears=] before being hacked and transformed into human-hunting death machines against their will.
902* TheVirus: On top of the initial infection, a Magia with a Zetsumeriser can spread their infection to other [=HumaGears=] around them, turning them into the series’ foot soldiers. One Zetsumeriser Magia can create an outbreak in minutes.
903* WhatMeasureIsANonHuman: While [=HumaGears=] face this trope in the show, Magia get it on a meta-level; most modern Rider shows with [[Series/KamenRiderDouble formerly]] [[Series/KamenRiderFourze human]] [[Series/KamenRiderZiO monsters]] have them turn back to normal when defeated. Magia is extended no such courtesy, being destroyed upon defeat and taking whatever remained of the [=HumaGear=] they once were with them. Just to drive it home further, later in the series humans start getting turned into monsters, and of course ''they'' turn back to normal afterward. Aruto's distress about this situation is finally resolved by the creation of the Progrise Hopper Blade, a HealingShiv that allows Magia to be turned back into normal [=HumaGears=].
904[[/folder]]
905
906[[folder:Trilobite Magia]]
907!!Trilobite Magia
908!!!'''Portrayed by:''' Various. For notable Trilobite Magia, see the "other [=HumaGears=]" section.
909[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr01_trilobite_magia.png]]
910Magia [[{{Mook}} foot soldiers]], converted from [=HumaGears=] when a Zetsumeriser-equipped Magia pierces them with tendrils.
911----
912* AnimalMotif: They are named after Trilobites, an extinct marine arachnomorph anthropoid species, and their face masks heavily resemble a fossilized Trilobite. Trilobites fossilized easily and are a very common find at dig sites, so it makes sense they'd be chosen as {{mooks}}.
913* ElectronicSpeechImpediment: The Trilobite Magia are prone to uttering lines in relation to the jobs they had before becoming corrupted.
914-->''"T-th-this is a call for a lost child..."''
915* FacelessGoons: To show how much they've lost all identity, they all wear the same gray trilobite-shaped face mask.
916* FightingFromTheInside: Anna, the [=HumaGear=] of the week in #4, is able to fight back against her reprogramming after being turned into a Trilobite by the Onycho Magia. Doing so soon causes her to shut down altogether while achieving the feat at all is implied to be because she GrewBeyondTheirProgramming over the course of the episode.
917* MechaMooks: They’re the weakest form of Magia, but can be produced in much greater numbers than the more customized Zetsume Riser wearing ones.
918[[/folder]]
919
920[[folder:Berotha Magia]]
921!!Berotha Magia
922!!!'''Portrayed by:''' Nakayama Kinnikun
923[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/gut_busting_tarou.jpg]]
924[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kr01_berotha_magia.png]]
925[[caption-width-right:250:[[AC: The big-headed Magia wielding the scythes.]]]]
926Originally a muscular comedian-type Humagear named Fukkinhoukai Taro[[note]]Gut Buster Taro[[/note]], he was hacked and given the [[SlayingMantis Berotha Zetsumerisekey]] by Jin.
927
928Once the Ark gains the ability to remotely hack [=HumaGears=], it begins doing so to create more Magia, the Berotha Magia among them.
929
930----
931* AnimalMotif: Its body resembles a praying mantis to some extent. The bizarre name Berotha actually comes from the name of an extinct mantidfly that lived in the Cretaceous period, the Kuji'''berotha''' teruyukii.
932* BreakoutCharacter: Not the Berotha Magia, but Fukkinhoukai Taro himself, who was so popular that he is getting a [=YouTube=] spinoff called ''A Miraculous Rematch!? Aruto VS Fukkinhoukai Taro: Fateful Gag Battle!''.
933* CheerThemUpWithLaughter: His original purpose as a [=HumaGear=], which he takes with great pride.
934* DualWielding: The Berotha Magia wields two Togamurder blades with backward grips.
935* EvilLaugh: As Magia, Taro has a creepy, ''very'' distorted laugh.
936* EyeBeams: As Berotha Magia, he can fire laser beams from his eyes.
937* FaceMonsterTurn: Jin hacked into the poor guy, whose duty was to make everyone laugh, and made him go on a rampage. However, he's been doing better after that incident as he is shown continuing his comedy act in a flashback mentioned by Bingo while proving Yuto's innocence.
938* MachoCamp: He is built big and muscular, with his signature act being to ''burst his muscules'', hence his name.
939-->'''Fukkinhoukai Taro''': Gut Power!
940* MeaningfulName: His name is a play on the term "gut-buster", meaning an extremely funny joke. Also, it also references that whenever he tells a joke, his artificial abs burst out.
941%%* MythologyGag: He is based on the ''Kikaider'' monster Green Mantis.
942* ReplacementGoldfish: After the incident, a new Humagear model resembling Taro was created and took his place off-screen, starting his comedy routine from the basics. This Fukkinhoukai Taro would eventually show up in the [=YouTube=] spinoff, and later in the movie.
943* SinisterScythe: Has two of them, his Togamurder, which are curved daggers held with backward grips.
944[[/folder]]
945
946[[folder:Kuehne Magia]]
947!!Kuehne Magia
948!!!'''Portrayed by:''' Shogo Teramoto
949[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/okureru.png]]
950[[quoteright:210:https://static.tvtropes.org/pmwiki/pub/images/kr01_kuehne_magia.png]]
951[[caption-width-right:210:[[AC: A Magia with a large collar similar to a boomerang.]]]]
952Originally a deliveryman [=HumaGear=] named Okureru, he was hacked and given the [[ReptilesAreAbhorrent Kuehne Zetsumerise Key]] by Jin, to launch an attack at Hiden Intelligence.
953
954Once the Ark gains the ability to remotely hack [=HumaGears=], it begins doing so to create more Magia, the Kuehne Magia among them.
955
956----
957* AnimalMotif: It is modeled after the '''Kuehnesuchus'''suchus, an extinct genus of gliding lizard-like reptile that lived in the late Triassic period.
958* MeaningfulName: His original name means "to send/deliver".
959%%* MythologyGag: He is based on the ''Kikaider'' monster Multi-Colored Sand Lizard.
960* RazorWings: His Boomezan wings, while incapable of flying, can be thrown as homing boomerangs that slice through even stone.
961* WallCrawl: Owing to his lizard nature, he can fastening himself to walls.
962[[/folder]]
963
964[[folder:Ekal Magia]]
965!!Ekal Magia
966!!!'''Portrayed by:''' Goro Yoshida
967[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/mamoru_0.jpg]]
968[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kr01_ekal_magia.png]]
969[[caption-width-right:250:[[AC:A Magia with sharp teeth.]]]]
970Originally a security guard [=HumaGear=] named Mamoru, whom Aruto gave recognition for attempting to protect Hiden Intelligence from the Kuehneo Magia, he was hacked and given the [[BoxingKangaroo Ekal Zetsumerise Key]] by Jin.
971\
972Horobi then called numerous Humagears to serve as Ekal Magias in #42, among them a janitor. He was brought back to normal by Aruto; the rest were presumably destroyed by Yua and Isamu.
973
974----
975* AnimalMotif: It is modeled after '''Ekal'''tadeta, a carnivorous fanged marsupial. However, due to its long canine teeth, one might mistake it for a saber-toothed cat.
976* TheCorrupter: Averted; he corrupts neither his fellow security guard [=HumaGears=] or the office lady [=HumaGears=]; he just hot-wires a motorcycle with his tentacles as a means of escape.
977* FangsAreEvil: His Carnivoba fangs, which can be extended to attack its opponent during combat.
978* IKnowYoureInThereSomewhereFight: Aruto attempted to reason with the Ekal Magia, before Is reveals that ''a reprogrammed [=HumaGear=] is beyond saving''.
979* MeaningfulName: His original name means "to protect". A given, as he was named by Korenosuke himself.
980%%* MythologyGag: He is based on the ''Kikaider'' monster Purple Rat.
981* TragicKeepsake: After he was destroyed, Aruto had Hiden Intelligence manufacture [[ReplacementGoldfish a second Mamoru model]] with the handkerchief bandage he gave the original in memory of him.
982[[/folder]]
983
984[[folder:Neohi Magia]]
985!!Neohi Magia
986!!!'''Portrayed by:''' Makoto Ishikawa
987[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/scissormenz_7.png]]
988[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kr01_neohi_magia.png]]
989[[caption-width-right:250:[[AC: A Magia who lets its many tendrils flutter.]]]]
990Originally a barber [=HumaGear=] named Scissormenz, he was hacked and given the [[TentacledTerror Neohi Zetsumerise Key]] by Jin.
991\
992A second Neohi Magia was created by the Ark from the real estate agent [=HumaGear=] Smile Sumida. For more of her character, see the [[Characters/KamenRiderZeroOneOtherCharacters Other Characters]] section.
993\
994Some Neohi Magias were created by Horobi in #42, including a construction worker, to serve as degraded bosses. The construction worker Humagear was brought back to normal by Aruto Hiden.
995----
996* AnimalMotif: It is modeled after '''Neohi'''bolites, an extinct genus of cephalopods.
997* CombatTentacles: Its main tactic in battle is to use his Maratacles for to restrain opponents from a range. If severed, they can be restored quickly, while the severed tentacles are still active enough to latch and bind onto the closest target.
998* TheCorrupter: The first Neohi Magia was tasked by Jin to act as this later on. His long-reaching wires/tendrils allow him to break into buildings to infect dozens of [=HumaGears=] simultaneously from atop a building.
999* {{Irony}}: Scissormenz was turned into a squid-based Magia in an episode about a sushi chef [=HumaGear=] earning his redemption through making squid sushi. He later turns said [=HumaGear=] into a Trilobite Magia out of pure misfortune.
1000* LogicalWeakness: Biting Shark is his perfect counter. Its agility and many blades let it sever his tentacles faster than he can produce them, making his primary tactic useless. Without his tentacles to defend it, his main body is easy prey for Biting Shark’s blades.
1001* MeaningfulName: As a barber, his name is Scissormenz (Scissor Man).
1002%%* MythologyGag: He is based on the ''Kikaider'' monster Red Squid.
1003* ShockAndAwe: The Ark Neohi Magia has been demonstrated to generate yellow electricity from its tentacles.
1004* SmokeOut: The Neohi Magia can produce a black smoke-like substance to obstruct its foe's visions as a means of escape.
1005[[/folder]]
1006
1007[[folder:Onycho Magia]]
1008!!Onycho Magia
1009!!!'''Portrayed by:''' Masaki Kanemitsu (Burs), Ryoya Abe (Taxi Driver Humagear)
1010[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/burs_2.png]]
1011 [[caption-width-right:225:Burs]]
1012[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/taxidriver_humagear.png]]
1013 [[caption-width-right:225:Taxi Driver Humagear]]
1014[[quoteright:300:https://static.tvtropes.org/pmwiki/pub/images/kr01_onycho_magia.png]]
1015[[caption-width-right:300:[[AC:A Magia who flies freely in the sky.]]]]
1016Originally a bus driver [=HumaGear=] named [[PunnyName Burs]], he was hacked and given the [[BatOutOfHell Onycho Zetsumerise Key]] by Jin.
1017\
1018A second Onycho Magia was later produced from an [[NoNameGiven unnamed]] taxi driver [=HumaGear=], who successfully steals the Flying Falcon Progrise Key for Jin.
1019\
1020The third Onycho Magia, Sakuyo Ichirin, was a florist [=HumaGear=] who was assigned by Aruto to represent Hiden Intelligence against master florist Rentaro Tachibana in a duel against ZAIA Enterprise. After Rentaro cheats to win the competition and [[TheReasonYouSuckSpeech she calls him out for having an ugly heart]], he slaps her in response, allowing her to fall under [[TheCorruption the Ark's influence]] and transform into the Ark Onycho Magia for revenge. For more of her character as a [=HumaGear=], see the Other Characters section.
1021\
1022In the Hyper Battle Video, As a result of the Onycho Zetsumerisekey being one of the components of the Unknown Zetsumerisekey, one of the forms the Magia could switch to is the Onycho Magia.
1023\
1024In #42, Horobi creates numerous Onycho Magias, including a waitress. She was brought back to normal by Aruto; the rest were destroyed by Fuwa and Yua.
1025----
1026* AbsurdlySharpClaws: Its Zytalon talons, extending from its fingers, are their main weapon.
1027* AnimalMotif: It is modeled after '''Onycho'''nycteris, an extinct ancestor species of bats.
1028* TheCorrupter:
1029** Burs attempted to stop the tour guide [=HumaGear=] Anna from exposing contents stored in a memory card found in Daybreak Town by turning her into a Trilobite Magia.
1030** The unnamed taxi driver turned a couple of security [=HumaGear=] into Trilobite Magia.
1031* FlechetteStorm: It is capable of firing barrages of needles from its body.
1032* HandBlast: The Onycho Magia can fire balls of energy from its hands.
1033* {{Irony}}: Flying Falcon was made to specifically counter the Onycho Magia, yet Zero-One has never got to use it to defeat the first Onycho Magia, the second manages to steal the Progrisekey from Aruto before he could use it, while the third was defeated from Thouser ''copying the Key's powers'' from Zero-One himself.
1034* MeaningfulName: Sakuyo Ichirin's name means "a single flower blooming".
1035* RunningGag: The Onycho Magia has something to do with female Gears:
1036** Burs as the Onycho Magia hacked Anna to become a Trilobite; however she ended up resisting the influence.
1037** The unnamed taxi driver was ordered by Jin to attack Seine along with Jin; while he failed to do so, one of the Trilobites did manage to damage the voice actress.
1038** Sakuyo Ichirin was an Ark Magia variant: however, she got better after being destroyed.
1039** Horobi summons a waitress in 42 to become an Onycho but was converted back to normal by the Progrise Hopper Blade.
1040%%* MythologyGag: It is based on the ''Kikaider'' monster Golden Bat.
1041* WeHardlyKnewYe: Both Burs and the unnamed taxi driver [=HumaGear=] do not have any dialogue prior to becoming a Magia. Subverted for Sakuyo Ichirin.
1042* WingedHumanoid: It is the first Magia capable of flying.
1043[[/folder]]
1044
1045[[folder:Vicarya Magia]]
1046!!Vicarya Magia
1047!!!'''Portrayed by:''' Koutarou Tokuzumi (G-Pen), Keisuke Minami (Lawyer Bingo)
1048[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/morifude_g_pen.png]]
1049[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/kr01_vicarya_magia.png]]
1050[[caption-width-right:225:[[AC:A Magia protected by a rock-hard shell.]]]]
1051Originally a manga artist [=HumaGear=] named G-Pen Morifude, he was hacked and given the [[DrillTank Vicarya Zetsumerise Key]] by Jin, to steal a Progrise Key for him.
1052\
1053During the Hyper Battle Video, Boketarou, a Comedian-Type Humagear, is hacked by a [=ZetsumeRiser=] and the Unknown Zetsumerise Key, a Zetsumerisekey created when Jin accidentally dropped a cracked Vicarya, Onycho, and Gaeru Keys into Ark's wires, initially transforming him into a Vicarya Magia, to Jin's displeasure. It is later revealed to his joy that the Magia could switch forms, the others being the Onycho and Gaeru Magias.
1054\
1055A second Vicarya Magia was created when Gai forcibly equipped a distressed Bingo Bengoshi with a [=ZetsumeRiser=] pre-loaded with a Vicarya Zetsumerise Key and activated it.
1056
1057----
1058* AnimalMotif: He is modeled after the '''Vicarya''', an extinct genus of snails.
1059* TheCorrupter: He turns his colleagues into Trilobite Magia just as they arrive to check out the commotion happening outside their home.
1060* TheDogBitesBack: After being abused by Choichiro for being used as a tool, he gets back after being corrupted by turning his remaining [=HumaGears=] into [[{{Mooks}} Trilobite Magia]] and attacking him.
1061* LogicalWeakness: His armor is so dense that most physical attacks just bounce off, but can be weakened with extreme heat. Aruto notices this when the heat from the Attache Shotgun's blast was able to damage him while everything else failed to make him flinch. So he had Is commission the fire-based Flaming Tiger Progrise Key to melt his drills and defeat him.
1062* MeaningfulName: His given name, G-Pen, refers to a type of pen used for inking manga, while his last name, Morifude, means "forest brush".
1063%%* MythologyGag: He is based on the ''Kikaider'' monster Violet Turban.
1064* ReplacementGoldfish: A new G-Pen was delivered to Choichiro after the battle, but now he is just Choichiro's sole employee (the three other Humagear assistants were not replaced due to Is's intervention), and Choichiro treats him as an equal by this point.
1065* ThisIsADrill: His Drisnailer drills, that extends from his head and arms, and are extremely durable.
1066[[/folder]]
1067
1068[[folder:Gaeru Magia]]
1069!!Gaeru Magia
1070!!!'''Portrayed by:''' [[Anime/KiraKiraPrecureALaMode Karen Miyama]]
1071[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/seine_8.png]]
1072[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kr01_gaeru_magia.png]]
1073[[caption-width-right:250:[[AC: A Magia raising a child in its mouth.]]]]
1074Originally a voice actress [=HumaGear=] named Seine Kanazawa, she was hacked and given the [[FrogMen Gaeru Zetsumerise Key]] by Jin.
1075\
1076A second Gaeru Magia was created by the Ark from the matchmaking expert Match Enmusubi. For more of his character, see the Other Characters section.
1077\
1078In the Hyper Battle Video, As a result of the Gaeru Zetsumerisekey being one of the components of the Unknown Zetsumerisekey, one of the forms the Magia can switch to is the Gaeru Magia.
1079
1080----
1081* AmbiguousSituation: During her final malfunction on stage, Seine appears to access the memories of, and deliver a message from, the original Sumire, calling into question just what's going on with the [=HumaGears=] who are becoming self-aware.
1082* AnimalMotif: She is modeled after the extinct gastric-brooding frog, also known as "Ibukurokomori'''gaeru'''" in Japanese.
1083* ArtificialFamilyMember: Seine as a robot Sumire to her father.
1084%%* MythologyGag: She is based off the ''Kikaider'' monster Red Mine Toad.
1085* ManOfAThousandVoices: A given ability, as per her job as a [=HumaGear=]. Her introduction shows her not only voicing a female character, but also a male as well as a ''cat''.
1086* MeaningfulName: Seine means 'to voice' in Japanese. The "zawa" portion of her surname is taken from her manager Seiji Ta'''zawa''', hinting at the other and real relationship that they have.
1087* NamedAfterSomebodyFamous: Seine's full name is an anagram of real life voice actress Creator/KanaHanazawa. Her previous human incarnation as Sumire may have been taken from either [[Creator/SumireUesaka Sumire]] [[Anime/StarTwinklePrettyCure Uesaka]], or [[Creator/SumireMorohoshi Sumire]] [[Anime/AikatsuFriends Morohoshi]].
1088* OddNameOut: For some reason, unlike all the Magias before her, her name is not based on a genus or family of the extinct species she is based on; her name is derived from "ibukurokomori'''gaeru'''", the Japanese name for gastric-brooding frog.
1089* ReplacementGoldfish: Her manager, Seiji Tazawa, modeled her as one for his daughter Sumire, who passed away due to illness three years prior. While he initially denies the similarity, it's harder to deny once it comes out that he's having Seine act like his daughter when they're in private. Since copying an existing human's appearance without permission is illegal, Seine herself is replaced with a non-human home-assist A.I. made specifically to be one for Sumire.
1090* SplitPersonality: Seine's manager has her act like his deceased daughter when they're alone, in contrast to their public persona as a voice actress and her manager. After being damaged in a Magia attack, Seine starts switching between the two states uncontrollably, effectively becoming this trope. The situation becomes far more ambiguous when in her final malfunction she acts as if she really ''is'' the deceased Sumire.
1091* ThrowDownTheBomblet: She fires frog-shaped Kogael Bombs from her mouth that explode upon impact, which is usally [[NestedMouths stored inside her mouth as a smaller head]].
1092[[/folder]]
1093
1094[[folder:Mammoth Magia]]
1095!!Mammoth Magia
1096!!!'''Portrayed by:''' Ken Kaito
1097[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kobe_4.png]]
1098[[quoteright:250:https://static.tvtropes.org/pmwiki/pub/images/kr01_mammoth_magia.png]]
1099[[caption-width-right:250:[[AC: A Magia who brandishes its giant tusks.]]]]
1100Originally a P. E. teacher [=HumaGear=] named Kobe Sakamoto, he was hacked and given the [[MammothsMeanIceAge Mammoth Zetsumerise Key]] by Jin.
1101\
1102A second Mammoth Magia was formed from the Ark taking control of Saikyo Takumi Oyakata, a carpenter [=HumaGear=] who was beaten up by realtor Tatsumi Arayashiki while in the midst of building a house.
1103
1104\
1105A third Mammoth Magia was created when Yua Yaiba equipped 119nosuke, the firefighter [=Humagear=] representative of Hiden Intelligence, with a [=ZetsumeRiser=] pre-loaded with a Mammoth Zetsumerise Key during the chaos of the Scouting Panda Raider's attack, and activated it.
1106
1107\
1108A fourth Mammoth Magia was created when Horobi hacked an un-named make-up artist Humagear. However, she was brought back to normal by Aruto.
1109
1110----
1111* AnimalMotif: He is modeled after the woolly '''mammoth'''.
1112* GrewBeyondTheirProgramming: He was originally assigned to only watch over his school's ailing basketball team until they disband, but at some point he decided to step in and personally train them, adopting traits of a hot-blooded coach while quoting famous basketballers to motivate his students. He actively inhibits the principal's attempts to reset him, culminating in achieving full self-awareness right in front of Aruto. Unfortunately, this also makes him a target for Jin, who quickly turns him into the Mammoth Magia.
1113* {{Irony}}: Mammoths are originally known to be able to survive harsh cold arctic temperatures. The Mammoth Magia however was defeated by the ice powers of [[AnIcePerson Zero-One Freezing Bear]].
1114* LogicalWeakness: His trunk lets him inhale projectiles and repel physical strikes, but only as long as its nostrils remain clear. When he tried to inhale [[AnIcePerson Freezing Bear’s mist attack]], the ice particles clogged his nostrils almost immediately, removing his best weapon from play, leading to his icy doom moments later.
1115* MacGuffinDeliveryService: His Zetsumerise Key is retrieved by Yua before Jin can recover it.
1116%%* MythologyGag: He is based off the ''Kikaider'' monster Green Mammoth.
1117* NamedAfterSomebodyFamous: He is originally named after the late American basketball player Kobe Bryant.
1118* ReplacementGoldfish: A second Kobe model was commissioned and sent to coach the newly-reformed basketball club after the Mammoth Magia incident, although the new Kobe now has to re-learn how to play basketball from his students.
1119* WeaponsThatSuck: His Exhaler trunk is able to inhale attacks such as Flaming Tiger's flames and [[AttackReflector throw it back at his opponents]].
1120* WhamLine: His moment of achieving self-awareness isn't one for the audience, who already know that [=HumaGears=] are becoming self-aware, but it ''is'' one for Aruto and Fuwa.
1121[[/folder]]
1122
1123[[folder:Arsino Magia]]
1124!!Arsino Magia
1125[[quoteright:225:https://static.tvtropes.org/pmwiki/pub/images/kr01_arsino_magia.png]]
1126[[caption-width-right:225:[[AC: A Magia with two powerful horns.]]]]
1127Originally an actor [=HumaGear=] named [[Characters/KamenRiderZeroOneOtherCharacters Enji Matsuda]], he was hacked and given the [[RhinoRampage Arsino Zetsumerise Key]] by Horobi.
1128\
1129He returns in #23-24, but once again [[FaceHeelTurn falls under the Ark's influence]] and decides to serve Gai. [[spoiler:[[FakeDefector Or so we are led to believe]]. After being found out, Gai forcibly equips him with a [=ZetsumeRiser=] and turns him into the Arsino Magia once more.]]
1130\
1131Horobi hacks a train conductor Humagear to become the Arsino Magia in #42. He was brought back to normal by Aruto Hiden.
1132----
1133* AnimalMotif: It is modeled after '''Arsino'''itherium, an extinct mammal that resembled a rhinoceros (but was more closely related to elephants) due to two giant horns on its snout like those on this Magia's helmet.
1134%%* MythologyGag: He is based off the ''Kikaider'' monster Gray Rhino King.
1135* TopHeavyGuy: Appropriate for a monster based on a prehistoric rhino.
1136* UseYourHead: Their main mode of attack, using the V-Horn on its head.
1137[[/folder]]

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