Follow TV Tropes


Characters / Kamen Rider Gaim Yggdrasill Corporation

Go To

Main Character Index | Beat Riders | Yggdrasill Corporation | Helheim Forest | Others | Movie Characters

This is a partial character sheet for Kamen Rider Gaim. Visit here for the main character index. Subjective trope and audience reactions should go on the YMMV page.

Yggdrasill is a powerful corporation that manages and controls Zawame City.

General Tropes

  • Arc Villain: They are the main antagonists of the New Generation Riders Saga.
  • Big Brother Is Watching You/Surveillance as the Plot Demands: There are Yggdrasill agents armed with video cameras to film anything related to the Crack occurences in Zawame City for the purpose of research. Even Helheim Forest is no exception. Incidents such as Yuya eating an unripe Lock Seed and transforming into the Byakko Inves only to get killed by Gaim were all caught on tape.
  • Create Your Own Villain: Their takeover of Zawame city lead to Kaito's Abusive Parents and caused him to develop into what would eventually become Lord Baron.
  • Disc-One Final Boss: In the beginning, Yggdrasill was played up to be the evil organization that the Beat Riders had to take down. Then the Overlords appeared, Enemy Civil War ensues, and Yggdrasill collapses, mid-series.
  • Advertisement:
  • Enemy Civil War: After Takatora is betrayed, the company's inner circle rips itself apart.
  • Evil Versus Evil:
    • Them versus the Helheim Forest, some for more nobler reasons than others.
    • And versus Idunn, a Rider bent on destroying Yggdrasill and everyone connected to its legacy.
    • And finally, there is Kugai Kudo/Kamen Rider Saver, who uses Lockseeds as a way to have people becoming suicide bombers in order to destroy Yggdrasill.
  • Greater-Scope Villain: They are seen as such in the Beat Riders Saga before Kouta finds just how tied they are to the situation. They also serve as one to the overall Big Bad. Had they not forced his parents out of business, Kaito wouldn't have adopted the dog-eat-dog philosophy that he strives to destroy.
    • In addition, the villains of three of the Gaim Gaiden moviesnote  either received their Drivers from Yggdrasill or were created from freak experiments performed by the company, making them this to the Gaim Gaiden movies as well. Even in Knuckle Gaiden it is shown that Yggdrasill is still handing out Sengoku Drivers and Lockseeds.
  • The Guards Must Be Crazy: Yggdrasill is hyper-competent about everything except with their security detail. The guards forget to watch the cameras, the executives never turn off or log out of computers with sensitive information, and the Kurokage Troopers spectacularly fail during critical moments: Not only can they be tricked by simply making a sharp turn; they manage to let three targets escape while not landing a single hit with their cannons, as well as how a 16-year-old boy flying a Dandeliner for the first time does a better job than the mooks specifically trained for it.
  • Advertisement:
  • "It" Is Dehumanizing: Many members of Yggdrasill call the Armored Riders 'guinea pigs'.
  • Kill It with Fire: Whenever the Helheim Forest encroaches onto Zawame City Yggdrasill puts a stop to it with a copious amount of fire.
  • Laser-Guided Karma: Yggdrasil slandered the Beat Riders and made the once joy-filled hobby look like a criminal organization sending Inves on people. Ryoma does this exact same thing to them by exposing their plans, making the once prosperous organization look like a terrorist cell.
  • Leitmotif: Has one.
  • The Masquerade: Yggdrasill is all over the place with this from making people think that the Armored Riders are a new fad to covering up the Helheim Forest's existence and stopping it from encroaching onto the human world.
  • Meaningful Name: One of the show's many references to Norse Mythology.
  • Mega-Corp: Played straight to a T. Yggdrasill controls most businesses and socioeconomic aspects of Zawame City. They claimed to have improved the quality of living of the citizens, which is a debatable point. On the other hand, Yggdrasill has kept the residents of Zawame City in the dark about the Helheim threat. Among their methods of combating the threat include preparing a WMD that can wipe out the entire city anytime with the press of a button. However, Yggdrasill's Project Ark takes the cake. A top secret plan to kill off 6/7 of the world's population.
  • Omniscient Council of Vagueness/Not-So-Omniscient Council of Bickering: Yggdrasill's inner circle is somewhere in between these two tropes. While they know a lot more than anyone else about what's going on; it's clear that they don't know everything, they're barely able to get along, and Takatora admits that they can barely control the Helheim situation.
  • Renegade Splinter Faction: One led by Ryoma that has completely taken over the organization with Takatora as the only Rider that is not a member of Ryoma's nut club.
  • Self-Disposing Villain: Yggdrasill basically defeated itself: after Takatora was apparently killed, the other New Generation Riders proceeded to rip the organization into pieces, allowing Redyue to easily conquer its main headquarters. The final nail in the coffin was when Ryoma revealed the secrets of Project Ark to the whole world. Honestly, Kouta could have sat on his ass twiddling his thumbs and waited for Yggdrasill to implode on itself.
  • Supervillain Lair: Yggdrasill Tower. It towers over Zawame City, has a permanent portal to Helheim in it, is heavily armed with laser guns, has an stealth camoflage system to stop the populace from realizing anything weird is going on, and possesses the Scalar System, a weapon of mass destruction that can destroy the entire city and kill everyone in it. From #32 onward, the building is used by the Overlords as their landing site on Earth, making it their own Supervillain Lair. In the epilogue, it is shown being dismantled.
  • Villains Want Mercy: In #11, when the Yggdrasill camp is being overrun by Inves, one of the scientists begs Kouta for help despite laughing and talking about how the Beat Riders are just guinea pigs before. Kouta calls him out on being a hypocrite, but still helps save the day.
  • Villain with Good Publicity: Yggdrasill encourages the popularity of the Inves Game by distributing Lock Seeds, hands out Drivers to kids as part of their shady experiments, and later frames them for the outbreak of the Inves Plague. Granted, #16 hints that Yggdrasill might not be so villainous after all, as their means might be justified to save humanity.
  • The World Tree: Evoked in their name, which ties into the whole "fruit" themenote . Their headquarters is even a tree-shaped tower.

    open/close all folders 

    Takatora Kureshima/Kamen Rider Zangetsu (Shin) 

Takatora Kureshima/Armored Rider Zangetsunote /New Generation Rider Zangetsu Shinnote /Armored Rider Gridon IInote 

Portrayed by: Yuki Kubota (live), Jun Watanabe (suit)

"This world is full of evil. Evil beyond purpose or reason."

The older brother of Team Gaim's Mitsuzane Kureshima. As an heir to the Yggdrasill Corporation, he has already taken on responsibilities within the company and is the head of the R&D Department. Though ruthless, he loves his brother dearly.

He initially uses the Melon Lock Seed and the Sengoku Driver to transform into Armored Rider Zangetsu. Later, he becomes the firstnote  user of the next-generation Genesis Driver, which, along with the Melon Energy Lock Seed, allows him to transform into New Generation Rider Zangetsu Shinnote .

Tropes that apply to him in general

  • All According to Plan: According to him, Gaim getting the Sengoku Driver has advanced Yggdrasill's agenda in some way.
    • Shown in #12: the various Riders using the Sengoku Driver has allowed Yggdrasill to both mass produce Drivers in the "form" of Kurokage for their mooks, and allowed the creation of both the Genesis Driver, and Energy Lock Seeds.
  • All There in the Manual: Neither of his Rider names have been spoken in the show. He's only ever referred to as "the white Armored Rider".
  • The Alleged Boss: While he's supposedly The Leader and Big Bad of the New Generation Riders, none of them actually follow his commands and really defer to Ryoma.
  • Almost Dead Guy: Takatora might have survived his dip into the sea, but being stuck in the ocean for so long gave him brain damage that would have killed him if Kouta hadn't intervened.
  • Aloof Big Brother: Is Ryugen's big brother, but instead of participating in the conflict between Beat Riders, he works for that big shady company.
  • Anti-Role Model: He comes to consider himself one. He thinks he provided a poor example for Micchy and unintentionally inspired him to become the ruthless, two-faced villain he is today after he was so easily fooled over the course of the series. Kouta later gives him another chance, though he needed some convincing after being so discouraged with both his own incapability and how far Micchy had fallen.
  • Anti-Villain -> Anti-Hero: He has been shown to have standards, loves his brother, is genuinely well-intentioned and is the only member of the inner circle that hasn't gone out of his way to be a dick in some way.
    • He is very uneasy about his decisions and wants Kouta to despair out of the belief that it would validate Takatora's own actions.
    • He eventually develops a high opinion of Kouta, and is willing to work with him when a more idealistic alternative to his original plan presents itself. While Takatora is willing to go to dangerous extremes, he is ultimately well-intentioned and firmly committed to saving humanity.
      • In Gaiden side episode has him begin into Character Development after meeting Kouta, especially when he finds out his father's dark secret within an abandoned Zawame's Child Care by Yggdrasill, the place where Touka was (though he didn't know Ryoma was one of those orphans there), turning them into a guinea pigs to make them work for Yggdrasill forever, thus may processed into The Atoner.
      • While still firmly a hero, both the stage show and the Gridon Vs Bravo special show he's still capable of manipulating others if he feels the need to.
  • Arrogant Kung-Fu Guy: Has the arrogance down, most likely due to his wealthy upbringing and role in Yggdrasill's grand plan. His combat ability is unquestionable.
  • The Atoner: If he didn't clash with Kouta, who turns out has a same ideal to safe humanity, yet powerful than Takatora, he and Mitsuzane could have been a family friend. This was shown when he finds out his father's dark secret, in which almost affects his life. However, was too late, as his father's influence affects Mitsuzane instead.
    • This eventually make matters right when he finally sees his sister in person after Kouta and Mai's departure in saving Earth, Kaito's death and Mitsuzane's redemptions.
  • Authority Equals Asskicking: Is a high ranking member of the Yggdrasill Corporation and strong enough to causally deliver a Curbstomp Battle to Gaim.
  • Badass Baritone: This merely accentuates his imposing and foreboding presence.
  • Badass in a Nice Suit: His main outfit. Justified since he was an high ranking member of Yggdrasill.
  • Beneath the Mask: At first glance Takatora is a stoic, arrogant man, but underneath it all he hates himself for what he plans to do but genuinely sees no other choice.
  • Big Bad: Subverted. While presented as the major enemy at first, as the show goes on he's shown to be neither very Big (other forces can easily manipulate him) nor Bad (he's committing what he feels are Necessary Evils).
  • Big Brother Instinct: For all of his faults, Takatora does genuinely care about his brother's future and well-being.
    • He did not take Sid's suggestion that Micchy took the Suika Lock Seed well.
    • His reaction to finding out Micchy is an Armored Rider... was not very good. He then also put two and two together about the Suika Lock. An episode later, he angrily demands answers out of Sid as to why he gave his brother one of the Drivers. When he confronts Mitsuzane about it, he even outright admits that he's upset because he wanted to protect him from the entire conflict with Helheim.
  • Big Good: Post-series, with Kouta's absence leaving him the strongest Rider on Earth, he seems to be moving into this role. He travels the world trying to undo the harm Yggdrasil carried out and with the Shin Kachidoki lockseed giving him an end-game tier final form, he's actively accepted his role is to fight for the rest of his life as a protector.
  • Bishie Sparkle: How he's seen through Bravo-Vision.
  • Boss Warning Siren: A subtle example. Before he steps out of the elevator in #10, a siren seems to alert his employees to his Incoming Badass...
  • Break the Cutie:
    • Takatora wants to do this to Kouta. A rare example where he doesn't really want to do so out of outright hatred or malice, but because he has genuine doubts about his actions and Yggdrasil's agenda. Takatora believes that seeing someone as heroic and idealistic as Kouta back down from challenging him would help ease his conscience and prove his course of action to be correct.
    • He also unintentionally did this to his own brother. Takatora showed Micchy the truth about the Helheim Forest in order to convince him to join Yggdrasil and help Takatora. However, it ended up causing Micchy's Start of Darkness.
  • Break Out the Museum Piece: In #36 he regains his old Sengoku Driver to become the original Zangetsu to try to finish things with his brother. Considering the power difference, he does amazingly well.
  • Break Them by Talking: In #22 he breaks Kouta by showing Kouta's fight against Yuya and pointing out how everything worked out because he killed his friend.
  • Broken Pedestal: To Ryoma in a really weird way. Ryoma used to hero worship Takatora, seeing him as the next God Emperor of mankind. However, after finding out that Takatora wants to use his powers for altruistic reasons, he turns against him.
  • Cain and Abel: With Mitsuzane, though surprisingly he's the Abel, as Mitsuzane ends up being much more antagonistic than he is.
  • Character Development: Takatora started out as an arrogant man who saw the Beat Riders as "street trash" but as he fought Kouta his arrogance wanes and he develops respect and sympathy for them.
  • Childhood Friends: With Touka Akatsuki, who was also his personal maid servant, and they were very close, at that. The truth of her origins sours things.
  • Cartwright Curse: An alternate version of Takatora has a wife who's comatose and in hospital in the Gaim summer movie. And in Gaim Gaiden: Zangetsu, a girl he once knew gets one of the Forbidden Fruit Lockseeds, turns into an Armored Rider and tried to kill him, but failed... so Ryoma finishes her off.
  • Comes Great Responsibility: He believes that it is the duty of the rich and powerful to protect the weak, even referring to it as Noblesse oblige.
  • The Comically Serious: Becomes this when interacting with Bravo.
    • Also used in specials and movies, in the crossover with ToQger he admonishes his underlings for telling him about a giant Inves fighting a mecha, unaware that said battle is happening right behind him, and in the crossover with Wizard, his reaction to the Fourze Legend Arms he gets is:
    Takatora: IT'S SP-... and that's as far as I'll humor that notion.
  • Create Your Own Villain: He considers himself the one who turned Micchy into the scumbag he is today.
  • Curb-Stomp Battle:
    • Delivers one to Kouta in #4, then curb-stomps all five other Riders in #11.
    • Does it again in #12 when testing the Genesis Driver against a squad of Kurokage mooks. It appears that "curb stomp" is his default setting.
    • #14 has him do this once again to Baron. However according to him, the Sengoku Drivers and Base Riders can't hope to equal an New Generation Rider.
    • In #19 this happens again: Kouta holds out for a while but ultimately couldn't touch Takatora at all.
  • Cuteness Proximity: His reaction to Ichigo Arms in the Hyper Battle Video.
    Takatora: This is too cute for me.
  • Dark Messiah: In direct contrast to Kouta.
  • Declaration of Protection: During his fight with Megahex he says this word for word, stating he'll protect the world he's inherited. Similarly, as she dies Kamen Rider Sylphi says that there'll always be someone like her and he'll never stop fighting. He merely responds that he's well aware of this.
  • Disney Death:
    • In #28 Takatora "dies" by being thrown off a cliff. To no one's surprise he's shown to be alive the very next episode.
    • Zigzagged in #36, where he's blasted into the river and his Driver's wrecked. Normally in Kamen Rider, being thrown into the water is the result of a harsher-than-usual beatdown, but it's generally not fatal. But then he's not seen (other than as a hallucination) for over two months... He eventually turns up alive, but not until the series epilogue; and as a deconstruction of the usual Rider practice in that his time in the water caused brain damage that left him in a coma for months.
  • Did We Just Have Tea with Cthulhu?: In #29 Takatora meets Rosyuo, King of the Overlords, who saves his life and regales him with his life story.
  • Does Not Like Guns: Zigzagged. He prefers katanas over guns, despite the fact that his Musou Saber doubles as a gun.
  • Dramatic Irony: In #20 he makes a speech about how one evil person can ruin the hard work of a hundred virtuous efforts... cue a scene where the rest of the New Generation Riders gleefully admit that they plan to screw Takatora over when the time is right.
    • The irony is furthered in the following episodes: he accuses Kouta of being naive, but Takatora now seems to be the only major player who doesn't realize that his associates are planning to betray him, as well as being the only major character oblivious to the existence of the Overlord Inves.
    • Takatora genuinely cares about and wants to protect his brother, but showing Mitsuzane the truth about the Helheim forest and bringing him into Yggdrasil has set the latter on the path to outright villainy.
  • The Dreaded: Kouta is scared to death of him. And after #11, this also applies to everyone but Micchy and Oren. Even the other New Generation Riders fear him. When the time comes to betray him, Minato is actually cautious and after his supposed death Sid feels confident enough to betray Ryoma.
  • Education Mama: Male example. He continuously reminds Mitsuzane about the importance of his education and advises him to avoid any "distractions" in his life.
  • Et Tu, Brute?: In #28, after getting betrayed by Sid and then Minato, Takatora applies this trope on Ryoma (who he honestly saw as his closest friend) when he finds out that the scientist is part of the coup.
  • Even Evil Has Loved Ones: The term evil may not be the right word for him, but Takatora does genuinely love his younger brother and wants what is best for him. In the two earliest tie-in films, he even sides with Mitsuzane and the other Armored Riders in the conflicts. This comes back to bite him in the ass in the most tragic way possible and leads to his supposed demise.
  • Everyone Has Standards:
    • He openly says that a trained soldier having a Sengoku Driver is too dangerous during #7 and requests the Driver be returned. Everyone else, however, seems to entertain the idea of Oren having the belt in one way or another.
    • He shows disgust whenever his other members do things For the Evulz.
    • He also doesn't aim to kill when fighting other Armored Riders. In #15, he makes it clear that without their belts the Beat Riders should even be protected. Unfortunately Sid seems to disagree...
    • After Takatora breaks Kouta by revealing the truth about Yuya's death to him, he simply lets him go since he doesn't think he's a threat to Yggdrasil's plans anymore. This is in spite of Sid's skepticism and the fact that he could probably kill Kouta easily in is depressed state.
  • Every Scar Has a Story: Has a prominent one on his right shoulder, inflicted during his first transformation into Zangetsu. #27 reveals that it still very much hurts, meaning that he has been fighting with a handicap the entire time.
  • Evil Counterpart: To Kouta, big time. Both are the lead characters in their respective factions and noticeably more moral than the other Riders - in fact, the only real difference between them is that Zangetsu has accepted having to Shoot the Dog; Gaim hasn't. As for their Rider forms, they're not only both samurai; but they both have the Musou Saber as an extra sidearm and their armors are in many ways Palette Swaps of one another.
    • Later subverted; Takatora's not evil, he's just more cynical. As soon as Kouta shows him the potential for a more idealistic solution, he's all in.
    • He's initially presented as one to Micchy. Both brothers come from a rich and powerful family, but while Micchy is friends with the hero, Takatora is built up as a villain. However, it's eventually inverted: Takatora ultimately has selfless motives and a strong moral compass, while Micchy is extremely selfish and becomes more and more twisted.
  • Fatal Flaw: By the halfway mark, it's made pretty clear that his fatal flaw is that, while he talks a big game about killing, he's pretty hesitant around it, having Sid kill Hase instead of doing it himself, wanting Ryoma to make just a few more Sengoku Drivers for Project Ark, and sparing Micchy and Touka are all examples of this. He also has major flaws in being a Horrible Judge of Character and being too trusting of people; and having Theory Tunnelvision, too committed to his beliefs and slow to recognize conflicting evidence.
  • A Father to His Men: Shown to genuinely care for the mooks directly under his command.
  • Foil: Takatora is one to both Kouta and Micchy.
    • Kouta: Takatora is The Cynic while Kouta is The Idealist. Both men are ultimately well-intentioned and want to protect humanity. Takatora is willing to commit various atrocities in order to make sure that the human race is able to survive; Kouta remains steadfast in wanting to save everyone and disapproves of Yggdrasil's methods. However, the two eventually realize they are not so different and Takatora is eager to take a more idealistic alternative when it presents itself. Both men also follow a Thou Shall Not Kill mentality, though whereas Kouta actively adopts it after he learns the Awful Truth and is willing to drop it when it comes to fighting the Overlords, Takatora subconsciously has it in his mind and never dropping it, even when his job requires him to at least kill some people.
    • Mitsuzane: Takatora is originally hinted to be a Big Bad, but is ultimately revealed to be a Well-Intentioned Extremist who genuinely wants to protect humanity and doesn't desire power for himself (even believing that it is the duty of the powerful to protect the weak). In addition, Takatora gradually warms up to Kouta and is moved by his idealism. In contrast, his brother Mitsuzane undergoes a Face–Heel Turn as he becomes increasingly Drunk with Power, to the point that he doesn't care about anything except what he personally wants. He joins forces with Redyue in her invasion of Earth even though her success would most likely bring about the end of human civilization. While he's also initially best friends with Kouta, Mitsuzane becomes bitter and hateful when Kouta's idealism leads him to repeatedly (and unintentionally) defy Micchy's schemes, and he starts trying to kill him.
      • It gets worse: when Takatora was willing to carry out Project Ark, he honestly saw it as a Necessary Evil and felt immense guilt for planning to carry it out. Once the possibility of a more idealistic option presented itself, he eagerly took it and joined forces with Kouta. In contrast, when Mitsuzane starts carrying out his own version of Project Ark in #35, he doesn't seem to express any sort of remorse; he gives some lip service to it being the key to humanity's survival, but he doesn't seem to actually care that massive amounts of people will die. Even worse, he treats Kouta's idealism with nothing but hatred, seeing it as a threat to his plans that needs to be destroyed.
  • Four Is Death: His Melon Lock Seed is LS-04, while his Melon Energy Lock Seed is ELS-04.
  • Four-Temperament Ensemble: The Melancholic.
  • Good All Along: He's revealed to be an unwilling Anti-Villain during the middle point of the series... ...just in time for the other New Generation Riders to betray him.
  • Handicapped Badass: It's revealed that he has a scar on his right shoulder, and that it still pains him to this day.
  • Happily Married: In the Soccer World, he has a sick wife, paralleling him with Rosyuo and his queen.
  • Hero with an F in Good: Oh, holy God yes. Every attempt he's made to try to stop Helheim has either shifted power back towards the people trying to manipulate him or somehow ended up making the entire situation worse for both sides.
  • Heroic BSoD/Despair Event Horizon: Happens in #28; after he realizes Ryoma has betrayed him, he loses the will to fight.
  • Hidden Agenda Villain: Kept his plans hidden for a significant portion of the story.
  • Hidden Depths: During his Curb-Stomp Battle with the other Riders, he takes extra caution to not actually kill anyone, even Oren who he thinks shouldn't be a Rider, by holding his Musou Saber backwards. He's actually horrified when he winds up destroying one of the Sengoku Drivers.
    • Furthermore, he tried to stop Ryoji from eating a Helheim Fruit, and after his transformation, he made Sid take him down in order to try to make him feel responsibility for his actions... He just didn't think that Sid would even care.
    • In #21, he admits that he has genuine doubts about his more morally questionable actions and Yggdrasil's plans, and respects Kouta's heroism and resolve.
    • #36 shows that he's not as cold and absolute as one may think. He fails to deliver the final blow on Mitzusane and is coldly struck down because of his hesitation.
  • Horrible Judge of Character: This is one of Takatora's Fatal Flaws. He relies on some rather Obviously Evil people, and can find no wrong in his brother. Micchy outright states that Takatora has a habit of trusting people that he really shouldn't in #23.
  • Imaginary Enemy: Micchy starts seeing hallucinations of Takatora after defeating him.
  • It's All My Fault: Takatora blames himself for what Micchy has become in #36.
    Takatora: That's right. I'm the one who made Mitsuzane like this.
  • Jerkass Realization: After learning about Micchy's Face–Heel Turn, Takatora realizes that his cold aloofness helped turn Micchy into the monster he's become. In particular, he flashes back to his earlier lecture to Micchy about how he needed to cut out "unimportant things" from his life. Takatora realizes just how cruel this was and deeply regrets it.
  • The Juggernaut: The only thing that's ever stopped him was his own moral compass. If he wasn't a good man, the bad guys would have won a long time ago.
  • Knight of Cerebus: In-universe for Kouta. Once he shows up in his life, he stops taking his life as an Armored Rider as a game.
  • Knight Templar: The Melon Lockseed's jingle, "Tenka Gomen!" is a Japanese idiom referring to the Chinese concept of the Mandate of Heaven, and initially Takatora seems to fit the bill, being ruthless in his pursuit of his goals and repeatedly emphasizing that he is fighting evil without purpose or reason. He's actually a subversion, however, as his resolve is far from certain about Project Ark and once another option is presented to him, he immediately takes it even though it comes from Kouta.
  • Kubrick Stare/Perpetual Frowner: His default expression.
  • Large Ham: Minor example: Though we the audience only see it once, his pre-transformation pose as Zangetsu is the most grandiose of all the Armored Riders, using CGI even before the transformation is initiated. He does no pose or gesture as Zangetsu Shin, however.
  • Laser-Guided Karma: He's the one who showed Mitsuzane the truth of Helheim and therefore started his downfall. It makes sense that he'd nearly die from the end result's hands.
  • Locked Out of the Loop: By #23, he had become by far the most unaware major player. He didn't realize that his associates were plotting behind his back, and he was the only major character who didn't know about the Overlord Inves.
    • Likewise, even before that, chronologically, he was unaware that, as part of the Lockseed project, his father had commissioned experimentation on children. Incidentally, the two confirmed survivors, who he each considered his friends, unaware of their connection to this, both bit him in the ass within a short time of each other. His former childhood attendant Touka and then Ryoma himself.
  • Made of Iron: Takatora is consistently portrayed as insanely durable, surviving multiple incidents that would have killed anyone else.
  • Miles to Go Before I Sleep: He would have been stuck in a coma forever and probably preferred it that way if it wasn't for Kouta asking him to help Micchy.
  • Mirror Character: Both Takatora and Kouta have doubts about fighting the Inves, care for those close to them, and ultimately want to protect people; the key difference between them is that Takatora has accepted the idea that innocent people must be sacrificed for the greater good, while Kouta wants to save everyone.
  • Named After Someone Famous: After Toudou Takatora.
  • Necessarily Evil: How he perceives all of the morally unjust things he does. He still feels immense guilt for them, though.
  • Nice Job Breaking It, Hero: Attacks Bujin Double right as he was about to finish off Bujin Gaim, resulting in Double's defeat, thinking Bujin Gaim was the Gaim he knew. While he wasn't exactly a 'hero' at the time, he was still on the hero's side during the conflict at hand.
  • No-Holds-Barred Beatdown: Gives Kouta one so brutal in #4, it leaves the poor guy absolutely terrified of him.
  • Not Quite Dead: TWICE. Having survived the fall in #28 and being knocked into a river by Mitsuzane in #36
  • Not So Above It All: In #22, he chuckles before showing Kouta that he killed Yuya.
    • Takatora purposefully tries to invoke this on Kouta: when Kouta calls him out on being willing to sacrifice lives in #22, Takatora turns it back on him by explaining that Kouta and other people are only alive today because he took Yuya's life. However, Kouta soon regains his resolve, rejects Takatora's belief, and destroys Yggdrasil's Scalar System with Kachidoki Arms.
    • In #27,his backstory reveals his goal to save as many people as possible from the Helheim invasion, similar to Kouta. Both of them also have a villainous sidekick that they genuinely view as their friend, while their sidekicks have their own goals and are willing to betray them any time (Ryoma to Takatora, and Micchy to Kouta).
  • Offscreen Teleportation/Villain Teleportation: Demonstrates this ability in Helheim Forest in #4.
  • Only Sane Man: For Yggdrasill. He's the only one who hasn't done something solely For the Evulz and is focused on their main objective while the other members of the inner circle tend to prefer making the Armored Riders suffer for fun.
    • Becomes more pronounced as time goes on: Takatora is the only New Generation Rider who actually wants to save humanity and acknowledges that Yggdrasil's actions are cruel; the others all see the Helheim invasion as a good thing and don't care that their plans will cause the deaths of billions.
  • Parental Substitute: Takatora admits in #36 that because their parents were always overseas, he had to raise Mitsuzane.
  • Pet the Dog: Out of his bond to two people, he's shown to be unable to kill them when forced to fight them. Sparing either of them don't pay off: Ryoma murders Touka anyway once he lets her go, and Micchy takes advantage of his hesitation and seemingly kills him.
  • The Proud Elite: Repeatedly refers to Beat Riders as "street trash" that's beneath him and tries to pass this attitude on to Mitsuzane. He got better after a while.
  • Psychotic Smirk: Flashes a Sid-worthy one when he shows Kouta that he killed Yuya.
  • Reasonable Authority Figure: Unfortunately, none of his subordinates are what you'd call "reasonable".
  • Sensitive Guy and Manly Man: Manly Man to Mitsuzane's Sensitive Guy.
  • Shirtless Scene: In #27, his bare shoulders and part of his back can bee seen during a shower scene. It shows that Every Scar Has a Story.
  • Sibling Team: In Movie War Full Throttle, he and Mitsuzane fight together against Megahex's invasion.
  • Skilled, but Naïve: While he's not technically naive, he's a very oblivious person due his tendency of relying on some extremely untrustworthy people and his inability to notice his brother's downward spiral.
  • So Proud of You: To Mitsuzane's shock, he actually applauds him for going behind his back and going against his planned out life by telling him that "you definitely have Kureshima blood in you".
  • Sympathy for the Hero: He seems to have gained a soft spot for Kouta, admiring his resolve and idealism, despite setting out to break his will.
    • Upon meeting Demushu and having Kouta tell him the truth about the Overlord Inves, Takatora immediately believes Kouta and the two join forces. Despite Kouta destroying the Scalar System, he seems to be more than willing to let bygones be bygones and give Kouta's idealism a chance.
    • Eventually, Takatora develops a very high opinion of Kouta and genuinely wants to help him. Unfortunately, Micchy has other plans.
  • Take Up My Sword: In #28, right before Sid sends Takatora plummeting to his doom, Takatora sees Mitsuzane in the distance and tells him to help Kouta and save humanity. Too bad Takatora doesn't know his little brother has made a Face–Heel Turn.
  • Tall, Dark, and Handsome
  • Tetragonist
  • Theory Tunnelvision: This is Takatora's other Fatal Flaw, as he tends to ignore whatever challenges his worldview or inconveniences his plans unless he can't avoid it anymore.
    • He initially refused to consider the idea that his beloved little brother wasn't the stoic, diligent student he pretended to be and fails to notice that showing Micchy the truth about Helheim has had a very horrifying effect on his sanity.
    • He fails to realize that all his trusted allies aren't Well-Intentioned Extremists like him and are conspiring against him. By #23, he appears to be the only major character who hasn't figured out that they're Obviously Evil.
    • He's also so far into the "sacrifice the many to save the few" plan (in spite of the guilt it brings him) that he has trouble accepting anything else. Takatora also assumes that his allies are all just as dedicated to the plan as he is.
    • Played for Laughs in the ToQger crossover, when he's completely oblivious to a giant mecha battle going on outside his window.
  • Throwing Your Shield Always Works: Demonstrated in #11 when fighting against Ryugen.
  • Token Good Teammate: Though ruthless and rather amoral in his methods, he's the only one of the New Generation Riders to have humanity's best interests at heart.
  • Totalitarian Utilitarian: A PG version, with some similarities to Kiritsugu Emiya.
  • Unwitting Pawn: To Sid, Ryoma, and Yoko, who all want Helheim to invade and are using Takatora to become stronger.
  • Used to Be a Sweet Kid: With Micchy during his childhood days.
  • Useless Protagonist: Micchy accuses him of being useless without Yggdrasil.
  • Weak, but Skilled: Even when there's an obvious power difference between him and his opponent, Takatora simply proves himself the better fighter. Case in point? He goes up against Micchy, who is currently using his Melon Energy Lockseed, with his base Melon Arms. Guess who ends up getting the upper hand? If it wasn't for Takatora hesitating, he would have won.
    • Later on, in Gridon Vs. Bravo, he gets stuck with the Donguri Lockseed of all things when he faces a corrupted Bravo with King Durian Arms. And despite the horrendously weak equipment he's stuck with, he still manages to hold his own and get into a back and forth. He ultimately loses, but the fact that he managed to cope that well with quite possibly the weakest Lockseed that isn't the Matsubokkuri Lockseed against such a strong opponent says a lot.
  • Well-Intentioned Extremist: Identifies as one, as he claims his plans are all for the good of helping humanity. He also goes on to say all of Yggdrasill is this, as it is their role in the world.
    • #16 shows that whatever he is trying to do is meant to save the world and has something to do with what's at the heart of the Helheim Forest.
    • Confirmed in #20. Takatora is trying to prevent Helheim from spreading over the earth, and in #21, if he has no other option to stop the spread, they use the ring on the tower to destroy all of Zawame. Sid, when revealing the latter to Kouta, pretty much states that it's a necessary evil if it means saving mankind.
  • What the Hell, Hero?: Gets called out by Micchy in #36 for being oblivious.
    Micchy: All you ever did was order me about, without ever seeing the bigger picture. And now you come waltzing back in!?
  • Where Did We Go Wrong?: He asks himself where he went wrong in #36 after he sees how far the brother he helped raise has fallen.
  • World's Best Warrior: It's pretty much agreed upon by both the Beat Riders and Yggdrasil that he is impossible to beat one-on-one. Case in point? It took every other New Generation Rider working together to beat him, and even then Ryoma implied that, had Takatora not been knocked off balance by Ryoma's betrayal, he still might have won.
    • Kachidoki's debut had Gaim going up against Zangetsu Shin in a one on one. The other energy riders are completely surpassed by Kachidoki to the point of curb stomp and we'd just seen Kouta walk through dozens of kurokage troopers. Zangetsu not only holds his own, he's on top for the brief fight, successfully knocking Gaim off the building.
    • Similarly, he takes on his brother and almost wins despite using the Sengoku Driver and basic Melon Lock Seed against Micchy's Genesis Driver and Melon Energy Lock Seed, and the only reason he loses is hesitating due to his memories of the younger Micchy.
    • During Movie War Full Throttle, he takes on Cyborg!Ryoma one on one. Ryoma is connected to Megahex at this point and is using Dragon Energy Arms while Takatora has only the basic Melon Lockseed and the Sengoku Driver. Takatora still wins.
    • In the Gridon Vs. Bravo Gaiden Movie Takatora fights Bravo in his corrupted powered up King Durian form...using the Donguri lockseed (by far the weakest lockseed outside the Kurokages). He's hold on against Bravo in an impressive back and forth, even if the Gridon form ultimately proves to be too weak to win. He then goes up against Sylphi using his own belt, which puts her up against Zangetsu Kachidoki, his latest form which seems to greatly surpass Kouta's version in power. He annihilates her.
  • Would Be Rude to Say "Genocide": G-Rated version. Yggdrasill does not "control" Zawame City, they enhance and improve it.
    • And of course, he never uses the actual G-word when discussing killing six-sevenths of the world population, possibly to assuage his own hang-ups over the moral implications of saving humanity through such actions.
  • Workaholic: Shows shades of this. When he's not working, what little interaction he has with his brother is interrupted by his phone ringing. He also shows disgust towards most of the youth of Zawame City and especially the Beat Riders, since in his eyes they contribute nothing to society.
  • Yank the Dog's Chain: Takatora was actually happy in #28, smiling and basically acting like an adult Kouta. Cue his brother and comrades' completely unexpected betrayal.
  • You Have Outlived Your Usefulness:
    • After the Genesis Driver is finished, he declares that Yggdrasill has no need for the Armored Riders and plans to make them "face reality". Thankfully, he takes a non-lethal approach (in contrast to his allies).
    • Takatora is on the receiving end of this trope when his allies finally betray him in #28.

Tropes exclusive to him as Kamen Rider Zangetsu
Soiya!/Iyo! Melon Arms! Tenka Gomen!note 
  • Brought Down to Badass: After losing his Genesis Driver and the Melon Energy Lockseed during the coup, which allowed him to become Zangetsu Shin, Takatora's only able to become the regular Zangetsu when he has to fight Mitsuzane, who took his brother's Genesis Driver and Lockseed. Despite this disadvantage, Takatora's fighting skills allow him to overpower Mitsuzane as Zangetsu Shin, only stopping himself with the finishing blow. However, Movie War Full Throttle has him outright win against Sengoku's Dragon Energy Arms before he can take his Genesis Driver to become Zangetsu Shin again.
  • Corporate Samurai: An almost literal example, since his armor has a distinctly Japanese motif.
  • Exact Words: Zangetsu is considered the Ouja of the series. Turns out they weren't talking about THIS Zangetsu...
  • Legacy Character: Not Takatora or Zangetsu per se, but Zangetsu Kachidoki is meant to be the inheritance of the powers the Lockseed once gave Kouta, re-engineered for Takatora's own Rider form and to surpass the original model.
  • Palette Swap: Watermelon Arms from Zangetsu Gaiden is basically Melon Arms recolored in dark red and green.
  • Super Mode: The novel gives him Jimber Melon Arms as an alternative to Zangetsu Shin. The theatrical play Kamen Rider Zangetsu -Gaim Gaiden- gives him his own melon-based version of Kachidoki Arms.
  • Superior Successor: Zangetsu's Kachidoki Arms are meant to surpass Kouta's version of the Arms, hence why it is encoded as "SKLS" (Shin ("True") Kachidoki Lockseed) instead of KLS-02. Since Kouta himself gives Takatora the Lockseed, it only makes sense.
  • Weapon of Choice:

Tropes exclusive to him as Kamen Rider Zangetsu Shin
Soda! Melon Energy Arms! (Japanese techno music)
  • Mid-Season Upgrade: Switches his Sengoku Driver in favor to the more advanced Genesis Driver.
  • Rain of Arrows: Assuming the abilities shown of the Sonic Arrow aren't shared by all New Generation Riders, Zangetsu Shin's arrows can do this, as shown in #12.
  • Weapon of Choice:

Tropes exclusive to him as Kamen Rider Gridon

  • Call-Back: Becomes Gridon to ferry the powers back to Hideyasu, much like how Kouta used Aym, the user of Proto-Gaim, to ferry the Shin Kachidoki Lockseed to Takatora himself.
  • Clipped-Wing Angel: Technically serves as an emergency form similar to Zerozero-One and Super Dead Heat, being weaker than Takatora's other forms. Takatora very quickly switches back to Zangetsu after the situation necessitating Gridon's use is resolved.
  • Drop the Hammer: The Donkachi.
  • MacGuffin Escort Mission: The Donguri Lockseed and unlocked Sengoku Driver in Takatora's possession needs to be delivered to Hideyasu in time. Also an exploited case of the trope, as the lack of a DNA lock means that it isn't entirely useless while in transit and Takatora can become Gridon II to hold off any attackers.

    Ryoma Sengoku/Kamen Rider Duke 

Ryoma Sengoku/New Generation Rider Duke

Portrayed by: Tsunenori Aoki (live), Kenji Tominaga (suit)

"I think I can go higher. More powerful; more versatile; power worthy of a god."

A scientist working in the R&D Department of Yggdrasill under Takatora. He is the creator of the Sengoku and Genesis Drivers, and is studying the expansion of Helheim Forest with great interest. Although he is technically the subordinate of Takatora, he speaks to his boss with a overly-familiar tone and is not afraid to undermine him for the sake of his experiments.

He later becomes a user of the next-generation Genesis Driver, using the Lemon Energy Lock Seed to transform into New Generation Rider Duke.

Tropes that apply to him in general

  • A Glass of Chianti: Seems like the professor had some red wine stashed away in his makeshift lab. He's seen seated comfortably with a glass in hand in #43.
  • Admiring the Abomination: Is really fascinated by Helheim forest, despite it being able to exterminate humanity within 10 years.
  • Absent-Minded Professor: Another dark take on an otherwise comedic trope. Ryoma lives in his own nutty world of mad science, and unless reality can help him with it he completely lacks empathy.
  • Affably Evil: Sure, he only cares about his own plans, but that doesn't stop him from being one of the most polite characters in the show.
    • Faux Affably Evil: #20 reveals his views are exactly the same as Kaito and he wants Helheim to invade. He maintains his politeness, but that revealed him as a complete villain.
  • Almighty Janitor: On the surface, he's just a quirky Mad Scientist. But in reality, he's a crazy Social Darwinist that leads his own faction that controls all of Yggdrasill's Kamen Riders.
  • Always Second Best: Ryoma secretly hates Helheim because it's better at making things evolve than him.
  • Ambiguous Disorder: His social skills are similar to someone with high-functioning autism. Also, he's a total nutcase.
  • Ambition Is Evil: Heavily gives off this vibe. As long as he can create new Drivers, he seems entirely unconcerned about the citizens suffering under the expansion of the Helheim Forest.
  • Arc Villain: While he's also the antagonist during the New Generation Riders Saga, this position is also shared with Redyue during the Forbidden Fruit Saga, after which Kaito takes over in the final arc.
  • Artistic License – Biology: Ryoma putting his brain into Hakaider's body violates so many biological laws it's not even funny, and raises way too many questions (like why his body didn't decompose).
    • Mythology Gag: Of course, those who are familiar with the Kikaider franchise know that this is perfectly reasonable within that series.
  • Asshole Victim: In #43, thanks to Kaito. At that point he had more than earned it.
  • Awesome Mc Coolname: His surname translates to something like "Extreme War" and is a homonym for one of the most infamous eras of Japanese history.
  • Back-Alley Doctor: Serves as this role during #42-43 while he attempts to extract the Golden Fruit from Mai as Micchy found this out the hard way in the latter episode. This is something we don't see someone who does a medical work without a license until three years later.
  • Badass Bookworm: Is probably the smartest character of the show and probably the third strongest Rider, behind Kouta and Takatora.
  • Badass Labcoat: His outfit when on the job.
  • Bad Guys Do the Dirty Work: He manages to remove two major threats for Kouta in a single episode: Micchy and himself. He broke Micchy by killing Mai and then he was Driven to Suicide after he was beaten down by Kaito.
    • According to Gaim Gaiden: Zangetsu, the girl who tried to kill Takatora loses her Driver and managed to slip off... until Ryoma found her.
  • Berserk Button:
    • Not knowing something. Seeing Kachidoki Arms made him flip out.
    • Later on, it's revealed that his button is seeing humanity advance without his research or study, which Kachidoki Arms and Lord Baron demonstrate.
  • Be Careful What You Wish For: Ryoma also wanted to go Transhuman. Hakaider allowed him to do that...and he didn't exactly know what he was getting into.
  • Big Bad: By #25 it's pretty obvious who's really in charge of Yggdrasil.
    • Big Bad Wannabe: But even a tight noose around the biggest corporation couldn't hold a candle to demigods lording over an Eldritch Location.
    • However, Ryouma is ultimately the most evil of all the villains in the series, and he survives the events of the story longer than the Overlords do. His actions and crimes still have major impact and lasting consequences on the story, so it could be argued that he's the Big Bad, even if he's not the Final Boss.
  • Blood Knight: When he finally gets into a straight fight, you can tell he's having the time of his life.
  • Break Them by Talking: He's so good at doing so, and his words DOES make sense to Micchy in #43:
    Ryoma: "You see, little prince Kureshima! Didn't Takatora ever tell you why he didn't want you to grow up bad? Liars, cowards, lousy children like you are easy prey for lousy adults!"
  • Breakout Character: Has become one of the more popular characters and gets enough post-show appearances to rival the main four, such as Movie War Full Throttle and some of the Gaim Gaiden specials, with one of which was slated to have Ryoma as the main character, which he got by winning a poll.
  • Broken Pedestal: Becomes this to Minato after he goes Dirty Coward and leaves everyone to die.
  • Bunny-Ears Lawyer: The guy has his quirks. When asked why the Sengoku Drivers make catchphrases, he admits it's a guilty pleasure.
  • Chewing the Scenery
  • Chronic Backstabbing Disorder: Minato even says he'll betray anyone for power.
  • Combat Sadomasochist: He's laughing like a schoolboy when he finally gets hurt in combat.
  • Contrasting Sequel Antagonist: As the creator of the rider gears in this show filled with multiple riders, he is the polar opposite to Shiro Kanzaki. He created the gears in order to fullfill his selfish agenda of grasping the Golden fruit by any means, while Kanzaki created his rider gears so he could save his sister from her impending death even at the cost of the riders' lives. Moreover, unlike Shiro, who uses Kamen Rider Odin as his representative Rider to fight on his behalf, Ryoma fights as a Kamen Rider to further his own agenda.
  • Crazy-Prepared: He built a secret entrance into Yggdrasill tower that only he knows about just in case something happened.
    • In #43, he has a personal remote control which allows him to short circuit the other Genesis Drivers and make them useless.
  • Cyborg: Temporarily, when he transplants his brain into Hakaider in the semi-canon Kikaider Reboot crossover. More permanently when he reappears in Movie War Full Throttle as "Mecha Ryoma Sengoku".
  • Deadpan Snarker: He does have a streak of sarcasm, regardless of the situation he is in.
  • Deal with the Devil: Gives one to Mitsuzane in #42: In exchange for buying Ryoma time to extract the Fruit of Knowledge from Mai, Mitsuzane would take the Yomotsuheguri Lockseed in order to defeat or possibly kill Kouta. Mitsuzane accepts.
    • In a sense, this is how he brought Yoko and Sid to his side, as flashbacks in Gaim Gaiden: Duke show.
  • Demoted to Dragon: When he comes Back from the Dead as "Mecha Ryoma Sengoku" in Movie War Full Throttle, he becomes The Dragon to the Big Bad, Megahex. Not that he's complaining about it, mind you.
  • Did You Actually Believe...?: Ryoma pulls this on Micchy after Mai's death. When Micchy returns from his final battle with Kouta, he's stunned to find that Ryoma broke his promise and killed Mai in order to extract the Forbidden Fruit. An amused Ryoma outright lampshades how utterly stupid Micchy was to think Ryoma would keep his word.
  • Didn't Think This Through: Yes, Ryoma, put your brain into a Killer Robot For Science! without checking the risks like you've always done before. Nothing could possibly go wrong.
  • Dirty Coward: Even worse than Micchy. His cowardice has proven even further after he abandons the rest of Yggdrasil employees, including Minato, to die in the wake of the Overlord Inves invasion. Then, he uses a kill switch to disable his opponent's Genesis Drivers so they cannot fight back against him.
  • Disney Villain Death: Lord Baron punches him into a wall so hard it leaves a crater, while he was untransformed, leading him to stumble about afterwards and fall off a ledge by tripping over it. If the damage to his internal organs didn't kill him during his fall, he certainly died when he hit the ground.
  • Does Not Know His Own Strength: Blames this as a result of his own inexperience in combat.
  • Dragon-in-Chief: He is the one that all of the Yggdrasill Riders bow down to while using Takatora as a figurehead.
  • Dragon with an Agenda: Wants Kouta's and Kaito's help in creating a new Driver that exceeds even the Genesis Drivers in power.
    • Not his only agenda, either. He also WANTS the Helheim Forest to invade the Earth, knowing that it would cause the deaths of thousands and not giving a damn.
  • Drunk with Power: Gives a speech that implies he was this long before becoming Duke.
  • Dull Surprise: Unless Mad Science or a Cosmic Horror Story is going on, Ryoma does a very bad job at pretending to care.
  • Egopolis: Named the Sengoku Drivers after himself. But with a name like his, who could blame him?
    • During Duke's Armored Rider days as depicted in Kamen Rider Gaim Gaiden - Duke, what was Lemon Arms' transformation jingle? "IN-CRED-IBLE RYOU~MA!"
  • Even Evil Has Standards:
    • Played straight in his Gaiden movie due to the fact that he wasn't a full-blown sociopath at that time, as he dislikes the fact that Kugai, and Black Bodhi by extension, use Lockseeds as not only a method to brainwash people, but as weapons of terrorism.
    • A rather downplayed example in the Kikaider crossover. After almost being consumed by Hakaider's killer programming he wonders who'd be monstrous enough to run an organization like DARK.
  • Evil Counterpart: To Baron. Both are based on European knights and named after aristocratic titles, and both are obsessed with pursuing something to the exclusion of everything else.
    • To Ryugen as well: both are former Psycho Sidekicks with Undying Loyalty to another more powerful and charismatic Rider who turn against them when they're told something they didn't like.
  • Evil Former Friend: Flashbacks from #27 show that Ryoma had once thought of Takatora as a man that could become the king of a post-Helheim infested world, showing genuine concern over Takatora getting injured and even designed the first Sengoku Driver as a sort of regalia for him. Of course, Takatora preferring The Needs of the Many over his own concerns, just wants Ryoma to just produce as many general Drivers as possible, which leads to a Glasses Pull event that marked the beginning of Ryoma's condescending tone towards Takatora and general decision to leave him Locked Out of the Loop.
  • Evil Genius: Yggdrasill's most important one. He invented the Sengoku Drivers, as well as the Genesis Drivers.
  • Evil Is Hammy: After Ryoma becomes a more active villain his Dull Surprise is replaced with ridiculous amounts of ham.
  • Evil Laugh: In #25 he tries to keep himself from doing this when Sagara confirms that Helheim contains a "forbidden fruit" that grants great power.
  • Evil Is Petty: Ryoma's whole motivation is that he can't handle the idea that Helheim might be able to make humanity evolve better than he can.
  • Eviler Than Thou: Pulls this on Mitsuzane. After revealing he never intended to save Mai, he utterly mops the floor with Mitchy all while mocking him as being nothing more than a child.
  • False Friend: He sees Takatora as a tool and nothing more.
  • The Fighting Narcissist: In a sense. Ryoma definitely has an overinflated ego and does his fair share of fighting.
    • The "Incredible Ryoma" transformation call for Lemon Arms in Duke Gaiden pretty much says it all.
  • First-Name Basis: Addresses Takatora without any honorifics whatsoever, implying a certain level of closeness to the guy. Shown in #27 to have been a former friend to Takatora.
  • For Science!: Seems to have this as a motivation. Even with both the Sengoku Driver and Genesis Driver performing well, he's already seeking to design a new belt that further taps into Helheim's power.
    • He becomes the antagonist for the Kikaider crossover after removing his brain and putting it into Hakaider.
  • Four Eyes, Zero Soul: #27's flashbacks show he used to wear glasses.
  • Freudian Excuse: Gaim Gaiden: Zangetsu reveals that he was put through Zawame Child Care Facility as a child. While exacts aren't clear, those there were experimented on and brutally raised to be future Yggdrasill employees. While it doesn't excuse anything it did, it goes a good ways to explain how he ended up as messed up as he did.
  • The Glasses Come Off: Surprisingly, it's only after he takes them off that he begins to be the Mad Scientist we all know and love.
  • Godhood Seeker: His ultimate motive. He either wants to become a god or create one, or both. Throughout the series, he seeks the godlike power of the Forbidden Fruit, and his ambition is to be the genius whose inventions drive forward the evolution of humanity. This is made more clear in Movie War Full Throttle, when "Mecha Ryouma" talks about how elated he is to be one with the Megahex collective, deeming it to be his achievement of godhood and fulfillment of his desire to become a being that surpasses humanity.
  • Greater-Scope Villain: Ryoma's activities and creations cause him to serve as this in many ways. In fact, the only villains from the series he isn't this to are the villains from the two Movie Wars starring Gaimnote , and all the villains associated with Badan in Kamen Rider Taisen.
    • He invented the Drivers, so any antagonistic Armored Rider or New Generation Rider in the story can ultimately be traced back to him (with the possible exception of Bujin Gaim, who comes from an Alternate Universe).
    • Ryoma directly created the Forbidden Apple Lockseed, which makes him this to its user, Armored Rider Iðunn, and to Kugai Kudo, whose Ascent To A Higher Plane Of Existence was caused by an experiment with the Forbidden Apple Lockseed gone horribly wrong despite the latter being the villain of his own Gaim Gaiden special. As such, he's indirectly responsible for the events of Kamen Rider Gaim Gaiden: Kamen Rider Zangetsu and Kamen Rider Gaim Gaiden: Kamen Rider Duke, despite being the protagonist of the latter. Yes, he somehow manages to be the Greater-Scope Villain to his own story.
      • Since Kugai Kudo is implied to be The Man Behind the Man to Shura aka Armored Rider Black Baron, the Big Bad of Kamen Rider Gaim Gaiden: Kamen Rider Knuckle, Ryoma is this of that special by extension.
      • Aside from Ryoma building her Driver and the Lockseed she uses, Iðunn's backstory involves her being experimented on by Yggdrasill. Ryoma took part in conducting experiments such as those when he was growing up in the same facility, so his creation of the Forbidden Apple Lockseed may be related to Iðunn's Freudian Excuse.
    • He's one to Yggdrasill, since he's the one who knew about Helheim first.
    • By disabling Kaito's Genesis Driver and dominating him in battle when he was succumbing to his Helheim-infected wound, Ryoma indirectly brought about Kaito's rise as "Lord Baron", the Final Boss of the main story.
      • He also made Kaito's Genesis Driver in the first place, and without it filtering the Helheim toxins, Redyue's infection probably would've killed him before he could build an immunity and become Lord Baron.
    • New Generation Rider Tyrant, the Big Bad of Kamen Rider Gaim Gaiden: Kamen Rider Baron, was Ryoma's Unwitting Pawn, and received his Genesis Driver and Dragonfruit Energy Lockseed from Ryoma.
    • Kohgane, the Big Bad of The Movie and the finale, was a Sealed Evil in a Can until Ryoma excavated it.
  • Hated by All: After he returns in #38, everyone hates him. Even Kouta acts like he wants to throw him out a window.
  • Hate Sink: His overall actions has made him far worse than Sid (though probably because Sid was already killed before he could demonstrate his own true villainy), since he almost put the world into utter destruction due his experiments and his ambitions of grasping the Forbidden Fruit.
  • Hidden Agenda Villain: Ryoma doesn't care about Project Ark and is only going along with it so he can take the resources for whatever it is he's really planning.
  • It's All About Me: As a narcissistic sociopath Ryoma is incapable of caring about anyone but himself or those he deems extensions of himself (Like Takatora used to be).
    • This is to the point that he has the regular Lemon Lockseed programmed to chant "Incredible Ryoma!" as its transformation jingle.
  • It Amused Me: The real reason for all those Sengoku Driver voices.
  • Jerkass: Though he may at first endear himself to the viewer through his quirks, Ryoma is without a doubt one of the most evil and cruel characters in the show.
  • Kick the Son of a Bitch: A villainous example. He kicks Micchy's ass after revealing his Xanatos Gambit. Also doubles as a Kick the Dog moment, since Micchy is already emotionally broken from Kouta and Mai's supposed deaths at this point.
    • Moments later gets his own at the hands of a powered up Kaito.
  • Killed Off for Real: Thanks to Kaito in #43...until he comes Back from the Dead in Kamen Rider × Kamen Rider Drive & Gaim: Movie War Full Throttle... and promptly dies again.
  • Lack of Empathy: Notice that whenever science isn't concerned Ryoma doesn't seem to emote properly, with his voice rather dull, and his facial expressions forced. And him apologizing about Ryoji's death was incredibly half-hearted. Outside of science, Ryoma just doesn't care.
  • Large Ham: The fact that he put voices in the Sengoku Driver purely for fun is quite silly. And as a New Generation Rider, his Lemon Energy lockseed is the only one (again, not counting Kaito who uses the same lockseed) that has a transformation call. He is also the only one of the group who has his own transformation pose. Adding all of these up, Ryoma almost seems like a real-life Kamen Rider fanboy. Except, y'know, evil.
  • Laser-Guided Karma: He made a career out of inventing things to surpass humanity and has a complex where he solely believes that only he can guide humanity to prosperity. He gets defeated by someone who surpassed his humanity without his inventions. Adding salt to the wound, he only got to that position of surpassing his humanity because of Ryoma's inventions.
  • Let Us Never Speak of This Again!: His reaction to the Kikaider crossover.
  • Like a God to Me: He used to view Takatora as some kind of God Emperor of Mankind before being jilted.
  • Mad Scientist: His A God Am I Motive Rant in #15 establishes that "sanity" isn't something that Yggdrasill wants on your resume.
  • Manipulative Bastard: He navigates Yggdrasill's internal politics effortlessly and in every scene he appears in he's either lying to or tempting the person he's talking to. He'd make a good politician.
  • Milking the Giant Cow
  • Morally Ambiguous Doctorate: Yggdrasill sure didn't hire him with ethical concerns involved. This is justified by the fact that Ryoma grew up in the Zawame Child Care Facility, so Yggdrasill basically raised him to be an evil scientist for them.
  • Motor Mouth: He could practically go a mile a minute in his speeches if he wills it, as seen in #39 when he speaks with Kouta a.k.a. the quote used to describe him being a sociopath.
  • Named After Somebody Famous: Japanese historical figure Sakamoto Ryoma.
  • No Sense of Personal Space: Tends to come really close to the people he is talking to, no matter if he is familiar with them or not. Like really uncomfortably close, to the point of making physical contact. This used to confirm his creepiness and lack of social skills, as close physical proximity and physical contact are definite no-go's in Japanese customs.
  • No Social Skills: Of the slimy Jerkass variety.
  • An Offer You Can't Refuse: He knows a secret way into Yggdrasill and holds the information over the heroes' heads.
  • OOC Is Serious Business: He is in shock when he witnesses Kouta's transformation into Kachidoki Arms as he does not recognize the Kachidoki Lockseed as one of his own, which is a stark deviation from his apathy or curious interest we are familiar with.
    • In #42 when disscussing how to deal with Kouta, he drops his smug flamboyance darkly admitting that Kouta is an "anomaly" that he can't defeat.
  • Peek-a-Bangs: He has some long bangs on the side, which sometimes hang over his face.
  • Pride: Ryoma believes that only he can make something that truly surpasses humanity.
  • Psycho Sidekick: Flashbacks show that Ryoma used to be Takatora's friend before turning against him.
  • Psychopathic Manchild: Type C. Ryoma is a skilled fighter, leader, scientist, and schemer, but all of his actions are very childish. He treats his Kamen Rider powers like they're a toy, implanted his brain into Hakaider for fun, and many people note that he treats that the battle for the Forbidden Fruit like a game.
  • Sad Clown: Ryoma is an inversion of this. One such example in #39, being The Sociopath that he is, his antics are most likely at the expense of Kouta and company. But none of them are buying his crap. #43 takes this Up to Eleven when he snarks at a seemingly-depressed Mitsuzane after his Pyrrhic Victory against Kouta, which is also the final straw to cause Micchy to break down at the mere sight of the dead remains of Mai.
  • Sadist: Kicks Micchy's ass while torturing him, and then letting out an Evil Laugh.
  • Sarcastic Clapping: To herald his return in #38.
  • Skunk Stripe: Has a whitish streak in his hair.
  • Slipknot Ponytail: His hair comes undone while getting beaten down by Lord Baron.
  • Social Darwinist: He and Kaito have much more in common than just their Rider motifs.
  • The Sociopath: He really does not care about anyone at all, and never hesitates or regrets his crimes. If he's to be believed, his upbeat personality is because he has no connections or compassion for anyone.
    Ryoma: Abandon your captured family. Give up on the friend who betrayed you. Feel no guilt for the murder of your friend. If you could find the will to be ruthless, then you'd be freed from all your stress in an instant.
  • So Long, Suckers!: Seen leaving Yggdrasil Tower in an escape rocket just as it gets overgrown by Helheim in #32.
  • Sure, Let's Go with That: In #17, Micchy makes up an excuse as to why he didn't betray Kouta, claiming that Ryoma didn't want Kouta to lose his belt yet. Whether or not he's right, his quick thinking impresses Ryoma enough that he's willing to back up Micchy's claim when Takatora comes calling.
  • The Starscream: He frequently schemes behind Takatora's back and ultimately leads a coup against him.
  • This Cannot Be!: In #43 he loses his shit when Lord Baron proves himself superior to the Genesis Driver.
  • This Is Unforgivable!: A rather twisted and myopic variant. In his last moments Ryoma calls Kaito an unforgivable monster for abandoning his Driver and becoming an Overlord. The reason why this offends him so much, is that he thinks his own research is the only truth and according to him, his technology is the only way to surpass humanity. Kaito doing so without his technology is seen as the ultimate insult to his research.
  • Took a Level in Jerkass: After ditching Yggdrasill, Ryoma doesn't need to pretend to be a good guy to Takatora anymore so he then frequently indulges in far more villainous behavior.
  • Tranquil Fury: After regaining his composure upon seeing Kachidoki Arms in action, he enters this state.
  • Transhuman: His other ultimate goal.
  • Troll: This is how he acts around Kouta and the others when he offers them help in #38.
  • Underestimating Badassery: He thinks that the Beat Riders are just going to roll over and die after the public turns against them, boy is he wrong.
    • There are actually times when he averts this. Whenever he transforms, he usually makes sure not to pick fights he knows that he can't win.
  • Villain Has a Point: He may be an evil sociopath, but his Breaking Speech towards Micchy after Mai's death is spot-on: he points out that Micchy is really nowhere near as smart as he thinks he is, was foolish to think that Ryoma would keep his promise to save Mai's life, and is ultimately just a stupid kid who was in way over his head when compared to the other villains. Granted, Micchy is hardly a hero at this point, but still...
  • Villainous Breakdown: In #23 seeing Kachidoki arms and realizing that he doesn't know something he temporarily flips his shit.
    • And in #43, he completely loses it, after Mai's spirit emerges from the Forbidden Fruit and takes her leave. Then he's driven to suicide by Lord Baron making him realize that Helheim is superior to him.
  • Villain Protagonist: He's the main character of his own Gaiden story.
  • Villain Takes an Interest: He thinks that either Kaito or Kouta could become the next Big Thing.
  • Visionary Villain: He wants to transcend humanity.
  • We Can Rule Together: He offers both Kouta and Kaito a chance to become a part of his god scheme. Both turn him down, knowing that he's nuts.
    • He gives another offer to Kaito in #20. It works this time.
  • We Have Reserves
  • With My Hands Tied: Subverted. He simply utilizes only one arm when battling Kouta in #19.
  • Would Be Rude to Say "Genocide": All but says that Yggdrasill is planning on killing six billion people.
  • Xanatos Gambit: Made one in #42 and profited in #43: Mitsuzane takes the Yomotsuheguri Lockseed and fights Kouta; Ryoma has time to get the Fruit of Knowledge out of Mai and therefore gains the power to become a god. He's not concerned about Mai's being, so she can die if it was necessary to get the Fruit, and if either Kouta or Mitsuzane came to stop him, Ryoma would already have the Fruit of Knowledge by then and could crush them into the dirt. Too bad the Fruit had assimilated Mai's mind by then and disappears to try and change fate.
  • You Have Outlived Your Usefulness: After getting Kaito to join his side, he gives Sid the okay to kill Kouta, having no more use for him.
    • Spoken to give Takatora a momentary respite, but does not follow through until #28.

Tropes exclusive to him as Kamen Rider Duke
Soda! Lemon Energy Arms! Fight, Power! Fight, Power! Fight! Fight! Fight! Fight! Fi-Fi-Fi-Fi-Fight!
Click here to see Duke Dragon Energy Arms 
SODA! Dragon Energy Arms! (Fast techno music)
  • Ace Custom: His Rider powers definitely seem to act this way, having the strongest punches and kicks than any other rider, including the ones who use Genesis Drivers. He is also the only one whose favored lockseed (Lemon Energy) has a transformation call in place of the usual post-transformation techno music (which carried over to Kaito when he received his own Genesis Driver and Lemon Energy lock seed). Confirmed in #39 and 40, where he shows off some extra tricks he's built in.
  • Awesome by Analysis: His Rider suit visor allows him to scan and process data in a moment's notice, allowing him to figure out how much of his power he has to use to beat his foes while learning about them at the same time.
  • Badass Cape: In both Lemon Energy and Dragon Energy Arms. Absent from Lemon Arms.
  • Curb-Stomp Battle: Delivers one to both Gaim and Baron in #19.
    • Lord Baron returns the favor in #43.
  • Invisibility Cloak: In #40, he turns himself invisible to sneak away.
  • Me's a Crowd: In #39, he projects holograms to distract his enemies.
  • Mighty Glacier: Very powerful, but notably slower than the other New Generation Riders.
  • Royal Rapier: Duke's weapon during his time as an Armored Rider.
  • Strong, but Unskilled: At least according to him, he doesn't fully get how to completely rein in the power of his armor yet.
  • Weapon of Choice: The Sonic Arrow, a bow and arrow compatiable with energy lockseeds he designed himself.

    Sid/Kamen Rider Sigurd 

Sid/New Generation Rider Sigurd

Portrayed by: Kazuki Namioka (live), Tatsuya Kaneko (suit)

An agent of Yggdrasill who masqueraded as a self-employed "Lock Dealer" and sold Lock Seeds to the kids of Zawame City. His true purpose was to observe the effects of the experimental Sengoku Drivers on their users and ensure that things did not get out of hand. While a subordinate to Takatora, he is a slimy career-chaser who will gladly make back-alley deals if it secures him more power and influence in Yggdrasill.

He later receives one of the next-generation Genesis Drivers, using the Cherry Energy Lock Seed to transform into New Generation Rider Sigurd.

Duke Gaiden reveals him to have been a two-bit drug dealer before encountering Sengoku. Sid's determination to claw his way to the top of the food chain impressed the scientist, who offered him a place in his inner circle.

Tropes that apply to him in general

  • The Aggressive Drug Dealer: "Aggressive" isn't quite the right word for Sid, but he looks and acts like a drug dealer and has sacrificed profit in the name of escalating the Inves Game more than once.
    • Duke Gaiden revealed that he actually was a completely straightforward example.
  • Anti-Role Model: What he essentially is. He goes on and on about how being an adult is all about making tough decisions, but as Kouta points out, about 90% of what he says is just an excuse to be a dick.
  • Arch-Enemy: The only person Kouta openly hates and shows no regret about hurting.
  • Badass Beard: He has a small goatee, which makes him look sleazy enough before he's revealed as a villain.
  • Badass Longcoat: He wears a long jacket and is definitely one of the more dangerous characters of the show for a while.
  • Big Bad Wannabe: While he is a dangerous, manipulative threat and the New Gen Rider most actively trying to kill the heroes with or without orders, he doesn't measure up to Ryoma and Takatora. He makes an effort to break off and grab the Forbidden Fruit for himself, even teaming up with Micchy, but ultimately doesn't last two-to-three episodes before being killed off by Rosyuo.
  • Big Eater: Subtle, but he's always snacking on something. The only times he isn't is when he's meeting with Takatora.
  • Beard of Evil
  • Beneath the Mask: While he's a bit of a jerk, he seemed fairly harmless and while the Beat Riders didn't like him very much, he still seemed willing to help them... but when he's enraged, he tends to fly into a psychotic rage and openly enjoys the heinous actions he commits.
  • Berserk Button: Kouta makes him angry in a way no one else can.
  • Break Them by Talking: After becoming Sigurd, almost all of his dialogue with Kouta revolves around trying to verbally crush him on a moral and ideological level.
  • Bunny-Ears Lawyer: Evil version. All of the Beat Riders hate him, but he's just too good at getting good Lock Seeds to just ignore.
  • Captain Ersatz: It's the Badger!
  • Character Tics: Holding and messing around with his S Lock Seed.
    • Before and after transforming, he tips his bowler hat, and in battle, he has the tendency to hold onto his head like his hat is there.
  • Chekhov's Gun: Remember that S Lockseed he always carries around? He can use it to control the Suika Arms armor.
  • Child Hater: He even admits to hating children.
  • Chronic Backstabbing Disorder: Backstabs Takatora and Ryoma in the same episode.
  • The Chooser of The One: Picked out which Beat Riders were to get Sengoku Drivers, generally looking for ones who would escalate the conflict.
  • Combat Pragmatist: Best shown when he shot the Banana Lockseed out of Kaito's hands before he could transform.
  • The Corrupter: He takes great joy in bringing out Mitsuzane's dark side.
  • Cruel and Unusual Death: Rosyuo uses telekinesis to trap and crush him between two cliff faces. Perhaps one of the most violent deaths ever seen in the Kamen Rider Series.
  • Dark Is Evil
  • Dead Hat Shot: After Rosyuo crushes him into paste, Sid's derby can be seen rolling to a halt next to Rosyuo. But then, considering Sid's fate, that would be all that was left of him.
  • Death by Irony:
  • The Dragon: Among Yggdrasill's Riders, he takes the role of enforcer.
  • Defiant to the End: Despite Rosyuo's Telekinesis staggering him to the point where he can barely even move, atomizing his Lockseed and Driver, and blowing off his hat, he still refuses to back down.
  • Easily Forgiven: After Takatora finds out Sid gave his little brother a Sengoku Driver, his initial reaction is to grab him by the collar in a moment of barely suppressed rage. While Sid brings up a good point in his defense, Takatora's line of "I expect you to follow through this time" comes off as nothing but naïve. He also goes unpunished for trying to use lethal force against Gaim and Baron, despite Takatora's insistence on protecting them.
  • Energy Bow: The Sonic Arrow.
  • Enigmatic Empowering Entity: Distributes the Sengoku Drivers and bikes to the various Beat Rider teams, often even for free. The Riders didn't know that it was for the purpose of giving Yggdrasill new lab rats.
  • Enigmatic Minion: While he's working for Yggdrasill, he kept the fact that he gave Mitsuzane a Driver a secret from his brother for an unknown reason. More than that, he gave Takatora every opportunity to find out, but was amused that he hadn't taken the bait.
  • Evil Counterpart: To Bravo (well, Evil-er Counterpart). Unlike the other Armored/New Generation Rider comparisons, they don't share an armor theme, but they both enjoy antagonizing others and especially picking on children. However, Sid ultimately turns out to be completely irredeemable, while Oren starts working with the heroes once he's appraised of the whole situation. Moreover, Sid never loses his condescending nature towards the "kids" and remained entirely convinced of his adult superiority...and yet he died acting and screaming like a spoiled brat. In contrast, Oren's bullying turns out to be misguided, as his desire to better the kids was genuine but he was too dismissive of them. Once he realizes that, as well as learning the kids were far more on the ball than he was, he develops more into a proper adult who guides the younger generation, most notably with his role in Hideyasu's character development.
    • In terms of armor theme (as well as the role in their respective groups), he would be one to Gridon - both having viking motifs and are the most manipulative member of their respective groups. Unlike Sid, however, Gridon never becomes anything more than a Joke Character. Although considering the relationship Bravo eventually has to Gridon, it makes sense that Sid is one to Bravo instead of Gridon.
  • Evil Wears Black: Bonus points for being one of the most evil people on the show.
  • Eviler Than Thou: At first it seems like he'll go this way in comparison to Ryoma Sengoku, since while Ryoma may be higher up in Yggdrasil, Sid is much more despicable, not to mention that Ryoma Sengoku is polite (at first, anyways), not to mention that unlike Ryoma, Sid gets a kick out of his more vile actions. However, it turns out to be a subversion - while he probably would have been more vile than Ryoma if he had stuck around, he gets killed off before he gets a chance to.
  • For the Evulz: Seems to be the reason he likes screwing with people's heads and seemed to actually get a kick out of killing Hase and then smugly rubbing it in Kouta's face.
  • Freudian Excuse: Implied. Part of his motive for getting the Fruit for Knowledge was so that no one would look down on him again. There was also his attitude towards Kouta and Kaito about how adults are the responsible ones.
  • Friend in the Black Market: To anyone willing to pay for his services in the first arc. He closes up shop afterwards, partly because Kouta called him out on just using the Beat Riders as lab rats and partly because Yggdrasill was ending that project anyway.
  • Gory Discretion Shot: When Rosyuo crushes him the camera tilts upward swiftly to spare the viewer from seeing his gruesome demise.
  • Hate Sink: Sid is such a slimy, smug, soulless, scumbag that All-Loving Hero Kouta openly hates him, telling the audience to direct their hate onto Sid. His stint however was outmatched by Ryoma who outlived him for many episodes.
  • Hidden Badass: No one expected him to be a real threat when the show started. Boy did he prove everyone wrong.
  • Hope Crusher: Sid has made it his personal goal to crush Kouta's ideals.
  • Hope Is Scary: He tells Kouta he opposes him because he's giving people false hope that will only be crushed. Given it's Sid, however, it's not clear how much he believes it and how much is just an excuse to mess with Kouta's head.
  • Irony:
    • Every attempt Sid has made to crush Kouta's resolve has somehow strengthened it.
    • Sid originally let Kouta live because it was fun to make him squirm while Takatora wanted to take more decisive action. Nowadays Sid is the biggest advocate for killing Kouta while Takatora lets him go out of sympathy.
    • Originally, Sid distributes the Sengoku Drivers to Beat Rider teams because of how easily manipulable and accepting they are of power given to them for free, and he believes that 'adults' like Sid would question this. This comes to bite him in the ass in #31, as he was easily tempted by the forbidden fruit offered by Redyue, getting him killed. Micchy knows that it is a trap and decides not to follow him.
    • Sid comments that Micchy watching his brother supposedly die without trying to stop his killers was rather cold of him. It's that same coldness that has Micchy not inform Sid of the trap and just have him march to his death. To add further irony, his brother gets to watch Sid die without trying to stop his killer.
  • I Just Want to Be Special: He pretty much screams this right before he gets squished Rosyuo, and it's his main reason for gunning for the fruit, combined with a bit of The Dog Bites Back. Gaim Gaiden: Duke confirms this to be the case, and how Ryoma found him and brought him into his fold.
  • It's Personal: For some reason, he hates Kouta on a personal level, dropping his Slime Ball persona when fighting him in favor for a more bitter, jaded outlook on life while trying to break him.
  • Jerkass: To the point where All-Loving Hero Kouta hates him.
  • Joke Character: Can be seen as one amongst the New Generation Riders, much like his Beat Rider Counterpart Gridon - he lacks the firepower that Duke has, Zangetsu Shin overall is much more versatile, and while he has higher stats than Marika, her combat prowess easily outmatches his own. It's also worth noting that of all the New Generation Riders to lose to Kouta, he's the only one who fights Kouta with the intent to kill and still loses - amusingly enough, it's to the Jimber version of his own energy lockseednote .
  • Kids Versus Adults: He often tends to talk about how adults are the master authority towards kids and how they should respect their elders. Both Kouta and Kaito respond by telling him where he can shove his agism.
  • Knight of Cerebus: Responsible for the show's first Rider death, which the lead writer calls the turning point of the story and says the one line that confirms that this is a deconstruction of Kamen Rider.
  • Meaningful Name: His name is a sound-a-like to seed, as in Lockseed.
  • Manipulative Bastard: He just loves to find out your hopes and dreams, then twists and corrupts them for his own amusement.
  • Nice Hat: A Dastardly Dapper Derby. It's ultimately used for a Dead Hat Shot.
  • Nice Job Fixing It, Villain:
    • As noted above in Irony, every attempt Sid has made to crush Kouta's Heroic Resolve just makes him bounce back stronger than before.
    • Inverted in #21. Him telling Kouta about the Scalar Weapon actually had Kouta team up with Yggdrasil to prevent Inves from coming out of a public crack. But played straight again in #23 as Kouta learns to go for the Scalar system while Storming the Castle and trashes it completely.
  • Not-So-Harmless Villain: While Sid was never harmless, all he seemed like was your typical corporate slime ball who would fold after the Riders got tired of his BS...But then he's revealed to be New Generation Rider Sigurd, who proves this assumption to be very wrong when he kills Ryoji.
  • Obviously Evil: The slimy looking guy who pushes Lockseeds like a drug dealer to teenagers and young adults is evil? Noooooo.
  • Only in It for the Money: Claims that money is his only motivation. This is a very obvious lie.
  • Pintsized Powerhouse: He's rather short, but very tough.
  • Punny Name: Sid <-> Seed. Also Sigurd.
  • Psycho for Hire: Unlike the other Yggdrasil employees, who either view their actions as a Necessary Evil or a means to an end, he enjoys his heinous actions, including killing Hase and trying to kill Kouta. While he talks a heroic talk, it seems to be only an excuse to perform heinous acts because he wants to.
  • Shoot the Dog: He describes his execution of Hase as this, though primarily as a way to mock Kouta - he doesn't seem to be the type who's concerned about "morality".
  • Silly Rabbit, Idealism Is for Kids!: He constantly taunts Kouta that his ideals are immature and childish.
  • Slime Ball: The man oozes corporate slime.
  • Smug Smiler: He's almost never seen without a sleazy grin on his face.
  • The Sociopath: Is charismatic enough to have easily convinced the Beat Riders to take his wares, takes a sadistic pleasure in screwing with people's heads, and has zero empathy for anyone else. He also escalates the Inves Game seemingly on a whim without orders from his superiors more than once. He also shows a violent, homicidal streak when he's actually enraged, to the point of outright trying to kill Baron and Gaim in anger when they get the slip on him. He also seemed to enjoy killing Hase as opposed to his comrades, who either viewed it as a Necessary Evil or were indifferent.
  • Soft-Spoken Sadist: While he has charisma and speaks calmly most of the time, the guy is notably the only Yggdrasil member to outright enjoy his heinous actions instead of seeing them as a Necessary Evil or a means to an end.
  • Spell My Name with an "S": The TV-Nihon fansub initially Romanized his name as "Cid" before switching to the more accepted "Sid."
  • The Starscream: He not only helps Ryoma undermine Takatora, but once that's out of the way, he backstabs Ryoma too.
  • Suicidal Overconfidence: He dips into this trope from time to time, such as thinking that he has what it takes to kill Takatora or defeat Rosyuo.
  • There Is No Kill Like Overkill: His solution to deal with Kachidoki Arms is three Suika Arms. It doesn't work.
  • Villain Has a Point: In the end, he appears to be right about killing Ryoji being the only option, and that if he was allowed to run free he could have hurt a lot more innocent people. Kouta admits that he may have a point, but argues that using justice as a rationalization for killing is wrong.
  • Villainous Breakdown: A very minor one after Kouta and Kaito give him the slip in #15.
    • A much bigger one after Kouta beats him and steals his Lockseed in #21. Given how Sid was completely confident that he'd kill Kouta, the shock on his face after Kouta managed to decisively beat him is priceless.
  • Would Hurt a Child: Despite viewing the Beat Riders as kids, and them being much younger than him, he has no problem beating the tar out of them and trying to outright kill them.
  • You Got Spunk!: A rather dark take on this trope. The reason why he gave Mitsuzane his Sengoku Driver was because he was impressed by his dark side. He also gave out the last three Drivers to teams willing to break away from Baron's alliance.
  • You're Insane!: Kouta calls him this after he reveals Yggdrasill's backup plan to nuke the city if the situation goes completely FUBAR.

Tropes exclusive to him as Kamen Rider Sigurd
Soda! Cherry Energy Arms! (Techno beat music)
  • Hero Killer: Sid kills off Hase during his first bout as Sigurd.
  • Homing Projectile: His arrows can do this.
  • Irony/Laser-Guided Karma: The murderer of the first Rider fatality is the second Rider to die.
  • Master of None: Sigurd is supposed to be the the most balanced among the New Generation Riders but Sid's lack of fighting experience makes him a weak fighter instead.
  • Meaningful Name: Sigurd relates to a heroic monster hunter, hence why his speeches regarding hunting down monsters consider him to be heroic.
  • Red Is Heroic: He insists he's heroic, but he's far from it.
  • Unskilled, but Strong: Sid's fight with Kouta in #21 shows that he's not that skilled of a fighter when he doesn't have the sheer power of being a New Generation Rider to rely on. When he faces a foe of equal power but superior fighting skill, like Kouta in his Jimber Arms or Kaito after getting a Genesis Driver of his own, Sid's shown to be badly outmatched. He seems unable to accept this fact, ultimately leading to him being completely slaughtered at the hands of Rosyuo, and his death.

    Yoko Minato/Kamen Rider Marika 

Yoko Minato/New Generation Rider Marikanote 

Portrayed by: Minami Tsukui (live & suit), Satoshi Fujita (suit understudy)

An employee of Yggdrasill Corporation working under Ryoma Sengoku. She acts as his personal bodyguard and assistant in the company using her incredible martial arts.

Using the Peach Energy Lock Seed and the Genesis Driver, she can transform into New Generation Rider Marika.

A flashback in Duke Gaiden reveals her to have been a former corporate spy whom Sengoku caught attempting to steal his research. His instant and astute analysis of her desperate need to cling to someone else won her over to his side.

Tropes that apply to her in general

  • Admiring the Abomination: She finds Kaito even worthier of being King after he becomes an Overlord.
  • All Amazons Want Hercules: While flirting with Kaito, she admits that she has a thing for powerful people.
  • All Love Is Unrequited: While Kaito respects her and sympathises heavily with her ambitions, his response when she implicitly asks him if he would've wanted her instead of Mai if she were the one with the Golden Fruit rather than Mai is to kindly but awkwardly tell her that she's really something special, but his desire for Mai who has become one with the Golden Fruit is on an entirely different level.
  • Anguished Declaration of Love/Dying Declaration of Love: While not as direct as an "I love you", she asks Kaito if he would've sought her with the same fervor that he pursues Mai if she were the one with the Golden Fruit instead of Mai, which is all but outright saying that she wants his love.
  • Anti-Hero/Anti-Villain: Her equally gray morality makes her very similar to Kaito.
  • Armor-Piercing Question: Gives one to Kouta in #33. Also doubles as a Wham Line.
    Yoko: What are you going to do with your power?
    Kouta: Protect everyone.
    Yoko: And once they're safe?
  • Ascended Extra: In a sense. After splitting from Ryoma, Minato begins to get a lot more lines and much more characterization.
  • Badass in a Nice Suit: An Urobuchi staple.
  • Battle Butler/Ninja Maid
  • Big Damn Heroes/Villainous Rescue: Shows up just in time to save Baron from Demushu in #24.
  • Body Guard Babes: To Ryoma, though he doesn't really need one.
  • Boyish Short Hair
  • Broken Pedestal: Used to look up to Ryoma until he abandoned her when the Overlords invaded.
  • Contrasting Sequel Main Character: Both Yoko and Miho Kirishima are the only female Riders of their series. Yoko became a Rider during the second arc, while Miho was a movie exclusive Rider. Yoko started off as an antagonist opposing the heroes and was loyal to Ryoma before she joins the heroes during the climax of the third arc and became more attached to the secondary rider, Kaito, while Miho was a sympathetic Anti-Hero who fights to get her sister back and a gold digger who seduce men for money before became attached to the main rider, Shinji.
  • Dark Action Girl: Oh yes. When her establishing moment is kicking Kouta and Kaito's asses outside of Rider form..
    • Plus, her actress, Minami Tsukui, not only does her own stunts out of costume, she's also the main suit actor for Malika. The last time any Rider actor performed their suit stunts was in the Showa era.
  • Desperately Looking for a Purpose in Life: In their first meeting, Ryoma sums her up as this, convincing her to side with him. Her search for a worthy, ambitious person to help achieve power and rule the world as a god leads her to Kaito.
  • Died in Your Arms Tonight: She died in Kaito's.
  • Distaff Counterpart: To Ryugen. Both are are modeled on Eastern warriors, Ryugen being Chinese and Marika being Arabian. In terms of personality, they're both morally questionable and started out intensely loyal to another Rider until that loyalty faded.
    • As Yoko, she also a counterpart to Kaito Kumon due to her being a Social Darwinist like him.
  • The Dragon: To Ryoma, until the Overlords invaded and he lost her respect by saying Screw This, I'm Outta Here!
    • Becomes one to Kaito over time, staying as such even after he becomes Lord Baron.
    • Dragon with an Agenda: When noted by Ryoma that she willingly holds herself back while fighting, he theorizes that she has a plan of her own. Not that he cares, it would only make things more interesting for him. And to further this theory of his, she does nothing to deny it and just gives a smug smile as a response.
  • Enigmatic Minion: To Ryoma, she starts off as his Satellite Character but her interactions with Kaito show that she has other plans.
  • Even Evil Has Standards: Despises cowardice and betrayal.
  • Evil Cannot Comprehend Good: A bit. She has trouble understanding why Oren has become a better person and is using his fighting skills for free.
  • Flat Character / Satellite Character: There really isn't much to Yoko unless she's with Ryoma or Kaito. Instead of acting independently, she's seen pulling bodyguard duty for people she considers worthy of obtaining the Forbidden Fruit. ...And that's really her sole motivation.
    • Sengoku calling her out on this is part of how he earned her services, according to Duke Gaiden. It also pretty much explains her gravitating towards Kaito. In essence, she is a peculiar case of Desperately Looking for a Purpose in Life.
  • God Save Us from the Queen!: Non-literal, but "Marika" is a derivative of Queen. And she can "royally" hand you your ass.
  • Good Costume Switch: Starts wearing white suits instead of black after joining the Rider Alliance, although this doesn't last.
  • Hazy Feel Turn: After Ryoma abandons Yggdrasill, she joins Kaito at his side. It remains to be seen if this applies to her morally, though. She returns to Heel status after the Overlords and Ryoma are dealt with.
  • Hidden Depths: Ryoma hints that she has the same level of hidden potential as Kouta. On top of that, she has yet to show her full power in combat. Even holding back, Kouta thinks she may be stronger than Sid.
  • I Fight for the Strongest Side!: Or the most ambitious, in her case.
  • Ignored Enamored Underling: Towards Ryoma until she was abandoned by him during the wake of Helheim invasion.
  • Kick Chick: A signature for Minami Tsukui.
  • Killed Off for Real:
    • Died protecting Kaito from an ambush from Zack's ambush.
    • Invoked again during the Go-Rider mini-series, although this time it's of her own free will.
  • Magic Skirt
    • Defied in Gaim Gaiden: Duke when she scales an apartment building for an investigation and she's shown wearing pants.
  • Mistreatment-Induced Betrayal: Dumps Yggdrasill after Ryoma leaves her to die against Demushu.
  • Ms. Fanservice: Due to her kicking ass and climbing stairs in a Dangerously Short Skirt.
  • No Sense of Personal Space: She really doesn't seem to understand the concept.
  • Pet the Dog: In #24 she saves Kaito even though she didn't have anything to gain from it.
    • Then when Ryoma is about to give Kaito the axe she convinces him to give Kaito a second chance and give him a Genesis Driver along with it.
    • After Kaito becomes Lord Baron, Yoko is horrified at his monstrosity and shows genuine concern on his well-being.
  • "The Reason You Suck" Speech: Gives one to Mitsuzane in #34, saying that somebody as childish as him is not fit to be a king and that he has no place he belongs to if all he does is betray and lie.
  • Say My Name: KAITO!
  • Social Darwinist: The reason she's drawn to Kaito's service is due to sharing similar ideals to him.
  • Stranger Behind the Mask: Kind of. Duke and Sigurd's human identities were seen before their appearance, but Yoko was a new character.
  • She's Got Legs: Short skirts are part of her standard outfit.
  • Ship Tease: With Kaito.
  • Take Over the World: Once Kaito becomes "Lord Baron", the two of them start plotting for world domination, and it's implied that conquest like this is something she's had on her mind the whole time.
  • Token Evil Teammate: Of the new heroic Rider alliance, she cares less about saving the city and more about seeing what happens when someone gets the Forbidden Fruit.
  • Undying Loyalty: She appears to be completely devoted to Professor Ryoma, at least on the surface.
    • After Ryoma bails in #32, this loyalty shifts to Kaito, whom she admittedly likes a lot more.
    • If anything, she's more devoted to who she thinks will create or be a god, which Kaito comes to fit the bill more than Ryoma. However, her words as dies in Kaito's arms imply that she had developed a genuine attachment to him and would follow him to the bitter end.
  • Unholy Matrimony: Likely what she was hoping for between her and Kaito.
  • The Vamp: Her advances on Kaito at first could've been an attempt at manipulation.
  • Villainous Friendship: Type III with Ryoma. She respects him and admires his vision. Ryoma doesn't give a crap and dumps her the second things go south.
    • Her relationship with Kaito becomes one when he lands back on the "Heel" side of the Heel–Face Revolving Door. That said, judging from her facial expressions, while she doesn't seem to regret her side, she's clearly worried the way events in the final arc are sliding out of control.
  • Villain Respect: In #28, she admits that she respects Takatora's abilities as a warrior and calls out Sid for underestimating him.
  • Villain Takes an Interest: She finds Kaito's endless search for more power exciting. Ryoma finds this investment to be especially strange considering her general disinterest in others.

Tropes exclusive to her as Kamen Rider Marika
Soda! Peach Energy Arms! (Arabian techno music)

    DJ Sagara 

DJ Sagara

Portrayed by: Tomomitsu Yamaguchi

The host of "Beat Riders Hotline", an internet radio station with its finger on the pulse of Zawame City's urban scene. He reports on the activities of the Beat Riders street gangs and runs popularity polls to determine who the top dog is. He is actually an agent of Yggdrasill Corporation who uses his web channel to distribute propaganda and galvanize the conflict between the Beat Riders. But there's more to him then even that, as his motivations and other things about him have been called into question; all we know for sure is that he put himself in a position to observe the Helheim conflict.

Near the end of the series he's shown to be the avatar of Helheim itself. For Helheim Forest specific tropes, see here

  • Above Good and Evil/Blue-and-Orange Morality: His ultimate goal is to see the outcome of the Helheim conflict. More precisely, his entire purpose is to make things evolve into a new level. He says destruction is just the tool he uses.
  • Affably Evil: Even if he is evil, the DJ is a very Cool Old Guy and an excellent judge of character, and all around good company.
  • Almighty Janitor: He's a mild-mannered DJ who is ultimately revealed to be the avatar of Helheim itself.
  • Animal Motifs: A snake.
  • The Anti-Nihilist: His philosophy boils down to "Odds are Helheim's gonna destroy your world, but I'd really prefer to see you stop it."
  • Ambiguously Human: Knows the Priestess, can invade dreams, and apparently created the Kachidoki Lockseed from an actual orange just by holding it. Eventually he's revealed to be much more than he appears.
  • Anthropomorphic Personification/Humanoid Abomination: #42 finally gives us an answer to what Sagara is: He's Helheim itself.
  • Anti-Villain: Unlike his co-workers, he is shown to respect the Beat Riders and even warned Takatora not to underestimate them. A later episode also shows him helping Kouta by springing him from an Yggdrasill holding cell and giving him a Lemon Energy Lock Seed with an adapter piece to use it with the Sengoku Driver. Ultimately, he simply wants to see what happens.
  • Armor-Piercing Question: Gives one to Rosyuo.
    DJ Sagara: You'll let seven billion people die just to save the one woman you love?
  • As the Good Book Says...: He quotes God in the Book of Genesis ("Be fruitful, then multiply, and fill the earth!") to Kouta and Mai before they depart for their new world, even lampshading that it's not really his place as a snake.
  • Author Appeal: Anyone who has seen Urobuchi's previous works should know he just loves nietzschean philosophy and Sagara loves to go on filibusters filled to the brim nietzschean undertones.
  • Beneath Suspicion: Yeah, like the DJ would be able to screw everybody over. Even after he's found out, the New Generation Riders have trouble wrapping their heads around how thoroughly they've been played.
  • Biblical Bad Guy: He heavily implies that he was the snake that tempted Adam and Eve to eat the Forbidden Fruit.
  • Big Bad: Or Big Good. Well, he's a Big Something. There's evidence for both sides of the alignment: on the Good side he's routinely given Kouta powerups and convinced Rosyuo to give humanity a fair chance. On the Bad side, he works with the various villains (both Yggdrasill and the Overlords) and has stated that he's helping Kouta in order to advance his own agenda. Ultimately, he proves to be Bad, in the form of a Greater-Scope Villain; since as Helheim, he's the cause of all the problems everyone faces but never the direct threat. That said, his true alignment is Chaotic Neutral; he doesn't care for good or evil, he just wants to see change.
  • Cool Old Guy: A rare (maybe) evil example. For a propaganda officer, DJ Sagara is one cool dude.
  • Crazy-Prepared: When Redyue asks him why he's disguised as a human, he states "Unpreparedness is one's greatest enemy."
  • Darker and Edgier: When offering Kouta the power of Kiwami Arms he becomes a much darker character. He wears his snake skin suit instead of his DJ costume, the shadows seem to cover him, he loses his hammyness and speaks in a much deeper voice, all the while admitting that he's offering a very dangerous Faustian bargain and dropping his previous benevolence.
  • Dragon with an Agenda: Just why is he helping out the Beat Riders when the rest of Yggdrasill's left them for dead? Played with later on, as he and Yggdrasill shift away from one another; after that point Sagara's nobody's Dragon.
  • Enigmatic Empowering Entity: To Kouta. He gives Kouta a Lemon Energy Lockseed, the upgrade to use the Energy Lockseeds, the Kachidoki Lockseed, and finally the Kiwami Lockseed. Sagara's motivations are less than clear.
  • Enigmatic Minion: He's proving to be even more enigmatic than Sid. He then seems to be Rosyuo's minion, but even that turns out to be false.
  • Evil Costume Switch: In a sense. When conversing with the Overlord Inves, he wears white priest robes instead of his normal attire and when talking to Ryoma, he wears a completely snakeskin outfit.
  • Evil Genius: Yggdrasill's third one. He's in charge of information control and propaganda.
  • Exact Words: In #32, Kouta accuses Sagara of lying about the Overlords. Sagara says he didn't lie - he told Kouta that Overlords could stop Helheim, but he never said that they would do it. Moreover, he never said that Kouta should try to talk to the Overlords, as there is another solution...
  • Fair-Play Villain: The reason why he's giving Kouta power ups is because he wants the fight for the Forbidden Fruit to be as fair as possible and he thinks that Yggdrasill started the game at an unfair advantage. Maybe, since Sagara has shown himself to be an excellent liar.
    • And again in #31, when he argues to Rosyuo that humanity at least deserves a fair chance to obtain the Forbidden Fruit; this convinces Rosyuo to create the Kiwami Lockseed from a portion of the Fruit.
  • Foil: To Sid of all people. Both are Enigmatic Minions, both are master manipulators, both give away artifacts that empower the Riders. But then they diverge: Sid wears black at all times, while Sagara dresses in bright colors, Sid is revealed to be the Anti-Role Model underneath his enigmatic exterior, while Sagara has actual depth, Sid handed Rider powers over to people who show negative character traits, while Sagara gave a power up to Kouta after he saw positive character traits.
    • He's also one to the Woman of the Beginning. Both are extremely enigmatic figures who have the same mysterious powers concerning Helheim, both love vague philosophical filibusters, and both seem to be the only people who seem to know what the heck is going on. But then they diverge, the Woman is a pessimistic, cynical fatalist who believe everyone is doomed to whatever fate she has seen and tells them to run. In contrast DJ Sagara is a cheery idealist who tells destiny to screw itself while convincing people to stand up and fight for what they believe in. Subverted that the Woman of the Beginning, in fact Mai fused with the Golden Fruit, and having seen tragedy after tragedy unfold for her friends, is justified, while his idealism is part of his scheme as a Biblical snake archetype. Though, when his own expectations are subverted, he's gracious about his defeat and wishes Kouta and Mai well.
  • Goggles Do Nothing: He wears a pair purely for aesthetic purposes in his mortal guise.
  • The Good Chancellor: He seemed to be this to Rosyuo, acting as his advisor and counseling him to give humanity a second chance.
  • Here We Go Again!/And the Adventure Continues: After the Helheim Invasion ends, Sagara goes off to find a new world to test.
  • Hidden Depths: He was originally presented as just an outside commentator, but it's soon shown that he's actually part of Yggdrasill. Then it's shown that he has his own agenda outside of Yggdrasil. Then he's revealed to have unnatural abilities, such as apparently creating a Lockseed from an orange. He is also acquainted with the Priestess and the Overlords. Ultimately, he turns out to be Helheim itself.
  • The Idealist: In a direct contrast to the Woman of the Beginning.
  • I Reject Your Reality: He tells Kouta that power can only be used to Kouta should use his power to destroy the rule of reality where hope requires sacrifice.
  • It Amused Me: Has openly admitted to this being the reason he's done... well, basically anything he's done since the start of the story.
  • Karma Houdini: He tried to destroy Earth, and previously destroyed the Femushinmu homeworld and possibly other planets... Yet, in the end, he gets off scot-free so he can keep on doing this to other worlds and species. Justified slightly in that his Blue-and-Orange Morality means that he can't really be judged by human standards. He's not malicious, he's just doing what he's always been meant to.
  • Large Ham Radio: He plays this role to hype up the Beat Riders. He puts it to use for Yggdrasil to keep pitting the Armored Riders against each other by keeping up the illusion that the Sengoku Drivers are only meant to enhance the Inves game.
  • The Last DJ: He plays this trope to a T. While he's a member of Yggdrasil, he doesn't agree with everything they say and they treat him as such. The problem is that his morality is a little more colored than the typical morality and inverts the laconic definition: prefers advancement over integrity. Not to mention that his nature makes him the first DJ.
  • Man Behind the Man: To everyone and everything. He is Helheim.
  • Manipulative Bastard: He manipulates people through his show to make them think that the Armored Riders are some kind of cool new fad instead of Yggdrasill's pawns.
    • More darkly, it's clear that he's manipulating Kouta for his own ends. He even admits as much in #32, though it's clear by the end of the series that he was simply the most interested in seeing what Kouta would do with the Forbidden Fruit's power.
  • Mr. Exposition: His job early on is to explain the new status quo each episode... well, the status quo Yggdrasill wants people to know.
  • Mysterious Backer: He decides to become Kouta's benefactor after being impressed by his inner ubermensch.
    • He is the one that gives Kouta the Kachidoki and Kiwami Lockseeds. What's more, Ryoma doesn't recognize the former as one of his projects.
  • Named After Somebody Famous: Sagara Sozo, whom some viewers may remember as the origin of Sagara Sanosuke's name. He led the Sekiho army in an ill-fated rebellion, which is particularly appropriate considering what DJ Sagara's been doing.
  • The Nicknamer: He's the one who gives Kouta, Micchi, and Oren their Armored Rider names.
  • Not-So-Small Role: Four times over. At first he seems like a Mr. Exposition Bit Character, and is then revealed to be Yggdrasill's propaganda officer, and when it looks like his role in the plot is done, he reveals himself to be quite the philosopher and becomes Kouta's Mysterious Backer. This is then turned up far beyond eleven when its revealed that he opposes the Woman of the Beginning and has the same powers as her, as well as knowing the Overlords. Finally, he ends up revealing himself as Helheim's avatar.
  • Omniscient Morality License: Sagara has a... unique way of thinking, caring only for the end result of Helheim's invasion unlike his subordinates who care about either stopping it or taking advantage of it. As such, he helps out Kouta, though the way he goes about it is through turning him into an Overlord via a Transformation Trinket. He doesn't do anything too awful outside of being the one behind the very force that everyone's focused on stopping, though his methods to helping the heroes and hindering the villains leaves even Kouta questioning if he's a good guy or bad guy.
  • Pet the Dog: In #15, when he learns that Kouta is being detained by Yggdrasill, he not only finds Kouta's cell but gives him a Lemon Energy Lock Seed, an adapter piece to use with his Sengoku Driver, and left behind his key card on the off chance Kouta could escape.
    • Another in #18: where he aids the Beat Riders, going against Takatora's wishes.
      • Just to make himself even more mysterious, he does it AGAIN in #19, gifting a Tuliphopper to the guys.
    • And AGAIN in #23 He pulled Kouta out of his Yuya murder funk by pointing out that since power is only good for destroying things, why not use it to destroy the rule that "hope requires sacrifice"?
    • He convinces Rosyuo to give humanity a piece of the Forbidden Fruit so that they can prove themselves, leading to Kouta gaining the Kiwami Lockseed.
  • The Philosopher: He often expounds on such things, particularly in #23.
  • Please Spare Him, My Liege!: After Rosyuo finished talking to Takatora in #31 he was going to write humanity off as a lost cause, cue Sagara showing up to convince him to give them a second chance.
  • Propaganda Machine: His original job. He's... branched out since then. Hah, branched out.
  • "The Reason You Suck" Speech: He's very good at picking apart peoples' motivations and ideals.
    • He give an oddly polite and well meaning one to Kouta. He points out that without Yggdrasill's secret backing, the Beat Rider teams would have never gotten anywhere in life. Kouta can't disagree.
    • In #23, he gives one to Yggdrasill in general, calling them cowards that pretend to be strong but are too afraid to stand up for their beliefs. He criticizes their reluctant acceptance of the idea that innocent people must be sacrificed for the greater good; specifically, that they believe that it's morally wrong but choose to do it anyway.
  • Satanic Archetype: He plays the role of the snake from the Book of Genesis tempting humanity with power and knowledge to test their true character. Ironically, upon getting over his initial disappointment for having his expectations for the winner of the Golden Fruit be subverted, he slips into the role of God in his well-wishing of Kouta and Mai to "be fruitful and multiply", even saying it's not his place to say so.
  • Screw Destiny: The reason he backs Kouta over the course of the series is because he's interested to see if he can avoid falling into the pitfalls of those who previously claimed the Forbidden Fruit and is pleasantly surprised when Kouta actually pulls it off.
  • Sharp-Dressed Man: Changes out of his goofy DJ clothes into a stylish gray suit in #25 when conversing with Ryoma.
  • Spiritual Antithesis: Due to many similarities in the respective series and sharing the same creator, he can be seen as one to Kyubey and the Incubators. Both provide the source of the heroes powers while conveniently forgetting to explain certain very important details, both are completely alien, and both appear seemingly harmless at first. But the Incubators are orderly, emotionless, and thrive on creating a circular status quo, while Sagara/Helhiem is chaotic, very hammy, and hates the status quo.
  • Stealth Hi/Bye: Demonstrates this occasionally. In #23, he even borrowed a cue from the Woman of the Beginning by supposedly invading Kouta's dream. Considering Sagara is an avatar of Helheim itself, the source of the Woman of the Beginning's powers, it makes sense.
  • Sympathy for the Hero: When Kouta says he only wants power so he can protect the innocent, Sagara is pleased enough to leave behind a keycard, a Lemon Energy Lockseed, and the adapter piece to let him use it.
  • Take a Third Option: He tries to get Kouta to do this. When Kouta believes that the only way to save the world is through sacrifice, he tells Kouta about the Overlords and how they have the power to stop Helheim. Later on, when Kouta finds that the Overlords are not interested in saving humanity, Sagara tells Kouta to become an Overlord himself.
  • Token Good Teammate: While Takatora is an Anti-Villain, Sagara seems to be one of the only genuinely good characters besides him to work for Yggdrasill. Ultimately, Sagara falls more under Blue-and-Orange Morality.
  • Troll
  • Unreliable Expositor: Sagara has appeared to three different factions and talked to them and supported their ideology to a certain degree all while giving contradictory information. It's unknown which side he even supports at this time, if he's even on a side.
  • Villains Blend in Better: For an Eldritch Abomination he plays the role of a human very well. From the very beginning, all of Yggdrasill thought he was a mere propaganda officer they hired to control the masses and he effortlessly played them.
  • Villainous Breakdown: Subverted. It looks like he's going to have one of these when Kouta finds a third option...but sticks to his proclamation of neutrality and agrees with his choice, even wishing him and Mai luck.
  • Visionary Villain: Ever since he was born, Sagara as Helheim has wanted to change the universe.
  • Voluntary Shapeshifting: Heavily implied: in #24, Redyue asks him if he's "assuming their form." Before that, he entered as a snake before changing to his appearance. Demushu even calls him a "damn snake". It's eventually revealed that as Helheim's avatar, Sagara can be whatever he wants to be.
  • We Are as Mayflies: A rather positive take on this trope. He points out that human lives are short, fragile, and insignificant, but it also inspires each individual human to be the best and most powerful person they can be.
  • We All Die Someday: In #15, the speech he gives to Kouta is about this.
  • The Watcher: Outright claims to be one in #25, though unlike most Watchers he clearly shows some biases and he's okay with interfering a little. (Okay, most Watchers interfere a little, but Sagara doesn't make any pretense that he's "supposed" to stay out of it.)
  • Wild Card: In #23 he tells Kouta to find the Overlords, but then in #24 he's revealed to be in contact with them. In #25 he claims to Ryoma that he is an observer, and only helped out Kouta because Yggdrasil had an unfair advantage. He then says he'll give some help to Ryouma's group...but all he really does is confirm what Ryouma already deduced. (Although Ryouma seemed happy with that.)

    Kurokage Troopers 

Kurokage Troopers

Portrayed by: Yuki Anai (voice), various (suit actors)

An unknown group of Armored Riders that use Matsubokkuri Lockseeds to become warriors very similar to Kamen Rider Kurokage. They serve as the private security force of the Yggdrasill Corporation.

  • Blade on a Stick: The Kagematsu, the signature weapon associated with the Matsubokkuri Lockseed.
  • Cool Bike: The Dandeliners. Unlike the Beat Riders' cycles, these are hover bikes.
  • Conservation of Ninjutsu: The original Kurokage was a decent opponent. These guys, however, fight in groups, and are little more than cannon fodder.
  • Degraded Boss: Ryoji, the original Kamen Rider Kurokage, was presented as roughly equal to the other Armored Riders despite having lower stats. Now Mooks are using his powerset, and do a significantly poorer job.
  • Kill It with Fire: They sometimes carry flamethrowers, specifically to burn down all plants grown by Inves.
  • Mooks: They're Yggdrasill's rank-and-file grunts.
  • Ninja: A cross between this and Japanese footsoldiers; though they act more ninja-like than Ryoji did. The Troopers are very good at magically appearing and disappearing like the warrior that they were based on.
  • Red Shirt Army: Sort of; throughout the series, they are shown to be incompetent at their job.
  • Screw This, I'm Outta Here!: After Ryoma abandons them against Demushu, all of the troopers desert Yggdrasill en masse and flee the city along with the civilians.


How well does it match the trope?

Example of:


Media sources: