Characters / Kamen Rider Zi-O: Protagonists

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

Kujigojido (9-5 Do)

Sougo Tokiwa/Kamen Rider Zi-O

See his page for more details.

Junichiro Tokiwa

Junichiro Tokiwa

Portrayed by: Katsuhisa Namase

Sougo's great uncle and guardian. He runs a watchmaking and repair shop by the name of Kujigojido. He often provides our heroes with cryptic hints and vital advice that aids with their mission.

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• Cryptic Conversation: He often rambles about receiving items to fix that are not clocks. More often than not, these ramblings would carry a subtle, yet vital hint or clue that would actually aid our heroes in solving their missions.
• Genius Ditz: Junichiro is brilliant at any sort of mechanical repair and an excellent cook, but manages to go an entire year without realizing that Sougo's a Kamen Rider despite his guests being anything but subtle.
• Insistent Terminology: Despite all evidence that he's a do-anything repairman, to such an extent that the Taros call him the "#1 Repairman of the Era", Junichiro insists that he only fixes clocks.
• Locked Out of the Loop: A self-inflicted example. Junichiro manages to go nearly the entire show without realizing that Sougo's a Kamen Rider despite the main cast openly discussing time travel and Rider-related matters in front of him, hosting several past Riders for lunch, hiring him to repair the Denliner, and in general doing everything short of transforming right in front of him. Sougo eventually has to tell him to his face what's happening for Junichiro to finally figure it out.
• Nice Guy: Overall very kind towards Sougo and friends. He took Sougo in after he lost his parents, accepts Tsukuyomi and Geiz pretty much as a part of family, is friends with Woz long before the herald moves in and just loves cooking for anyone, who comes in, be their human or Imagin or anyone else.
• Omnidisciplinary Scientist: While Junichiro claims to be a clock repairman by trade, he's capable of repairing basically anything, up to and including time machines. He even fixes the Ridewatches for Sougo after they're broken and leaking history itself.
• Parental Substitute: Acts as Sougo's guardian in the absence of his parents.
• Parents as People: Or in this case, "parental substitutes". In #27, he admits that he never scolded Sougo because he was scared, not knowing what to say because Sougo lost his parents so young. When he finally does advise Sougo that it's fine to feel sad, he nearly keels over from the fear afterward.
• Plucky Comic Relief: While he's not without his own serious and touching moments such as giving advice to Sougo, generally his appearances lower the tension. Even when he is trying to stab Sougo in #41, he does so with a radish.
• Reasonable Authority Figure: He tries to support Sougo in his decision to be a king, but also tries to gently steer him into a more normal occupation for his future and well-being.
• Running Gag: He never seems to be tasked with repairing a clock. #7 has him note that he only seems to get a clock once every three months or so and that people apparently refer to his shop as a place for any repair job. In #11 when Woz asks him to repair an actual alarm clock, he's absurdly excited. So excited that he's pretty much blind to the world until he finishes working on it. #39 takes the gag to its logical conclusion with the Taros asking him to fix the Denliner, trying to justify it by claiming that it's like a clock. And he succeeds and it doesn't stop there, in #49, he was able to fix the RideWatches.
• Supreme Chef: Apparently his cooking is so good, it even impresses Shouichi Tsugami .
• Unfazed Everyman: He isn’t aware that Tsukuyomi and Geiz (and even his own nephew) are time travelers, but he accepts the fact that they’re living under his roof without a second thought. In #3, he even makes the two of them bento lunch boxes to take to school, which prompts Sougo to remark on how accepting he is. Seeing Sougo come tumbling out of a mirror fazes him a little bit, but he shakes it off by assuming that's just something kids do these days. His reaction to Woz saying that Sougo is in space in #38 is make more food as Sougo has to be starving when he comes back. He even meets the Taros in their true forms without batting an eye, only stating they look more like Oni compared to Kyousuke.
• Won't Take "Yes" for an Answer: In #11, Woz asks him to repair an alarm clock. Because he's so used to it (see Running Gag), Junichiro automatically goes into his normal spiel about "Sorry, this is a clock repair shop" before realizing that the object in question actually is a clock. By that point Woz has apparently changed his mind and Junichiro practically has to pry the clock out of his hands just to work on it.

People from 2068

Geiz Myokoin/Kamen Rider Geiz

Geiz Myokoin/Kamen Rider Geiz/Keito Myokoin

Portrayed by: Gaku Oshida (live); Yuya Nawata [episodes 1-46], Kosuke Asai [episodes 47-49] (suit)

A Kamen Rider from 2068 and a member of his time's resistance army. In an attempt to change the future, he travels back in time to kill Zi-O before he gets a chance to rise to power in the first place. Through some convincing, and after seeing Sougo's resolve firsthand, he instead moves in with the young Rider and accompanies him on his journey.

Tropes that apply to him in general

Zi-O! The only one who can defeat you… is me.

• Aesop Amnesia: Played realistically. Geiz is easily manipulated, and despite putting on airs of being a hardened soldier, he's actually very soft-hearted and often hesitates when it counts. Both of these traits are things that take more than just one lesson or pep talk to grow past. It takes Geiz being shown twice in short succession that other people are getting hurt or even killed because of his inability to fulfill his promises for him to finally muster the strength of will to become Geiz Revive.
• Anti-Hero: While Geiz's goal to prevent a Bad Future is admirable, he's anything but noble in how he goes about trying to achieve it. Tsukuyomi is usually able to rein in Geiz's worst impulses, but he's still ill-tempered and antisocial even at the best of times.
• Been There, Shaped History: The Movie reveals that he was the historical Oda Nobunaga, with the real one being too incompetent to do much of anything.
• Black-and-White Insanity: Geiz doesn't really seem to have a grip on the idea of "subterfuge" or "faking loyalty". Sougo becoming a Fake Defector to learn more about how not to be a King from Kuroto Dan lead to Geiz immediately declaring that Sougo's locked into the path of Oma Zi-O and needs to die.
• Bullying a Dragon: Geiz will take just about any excuse to pick a fight with Sougo, who has good reason not to be concerned. At every turn, Geiz finds himself either manipulated by Sougo into doing what he wants despite Geiz's attempts to do the opposite, or worse, it does come to a fight and Geiz finds Sougo to be quite capable of absolutely crushing him. In White Woz's timeline, Geiz does ultimately gain the power to defeat Zi-O as Geiz Revive, and in so doing bring about the good future, or so Woz claims. He becomes Geiz Revive in the present, and indeed is capable of defeating Zi-O. Quite easily at that.
• Career-Ending Injury: In Geiz, Majesty, his reincarnation, severely injures his foot to the point he had to give up his dream of being a judo champion.
• Contrasting Sequel Protagonist:
  • Ryuga Banjo is a Half-Human Hybrid who is an Idiot Hero and can interact to Sento normally, while Geiz was an Genius Bruiser Anti-Hero who opposed Sougo due to his future and only halfway into the series did he warm up to him.
  • Daiki Kaito was a shameless Phantom Thief who went out of his way to mess with everyone around him, making him extremely unpredictable as a result. Meanwhile, Geiz is extremely straightforward in his approach of handling things to a dangerous fault, resulting him to be easily manipulated by other parties due to being so predictable. Distinguishing himself from Kamen Rider Decade, Kamen Rider Diend's main power was the ability to summon any past rider at his beck and call, whereas Kamen Rider Geiz has the same exact main skill as Kamen Rider Zi-O - which being is to armor himself with the past Kamen Riders. Kaito is able to keep up with Tsukasa whenever they come to blows either physically or mentally but Geiz despite his efforts before he got the Geiz Revive Ridewatch is always weaker than Sougo on both of those fronts, much to his frustration. Kaito is openly friendly to Tsukasa (with Word of Dante saying the former "likes" the latter), but would regularly get in his way due to his own selfish desires while Geiz is openly antagonistic to Sougo but they regularly work together to protect the timeline, with Geiz unable to find it in himself to truly hate Sougo.
• Death by Irony: He and Zi-O fight Another Riders using the Ridewatch needed to destroy the corresponding Another Watch permanently. In the timeline Sougo erased by rewinding time, his attack was reflected by Another Ryuga, turning his own strength against the Geiz Ridewatch and destroying it. This in turn, lead to his death.
• Defeating the Undefeatable: Just like Zi-O II for Sougo, Geiz Revive is able to beat Another Riders without the appropriate Ridewatch, at least according to White Woz. Given its debut showing, it's hard to disagree.
• Defrosting Ice Queen: It's very obvious that Geiz despite himself is growing fond of Sougo but refuses to admit it. It takes till #28 that he finally admits that he does see Sougo as a friend.
• Despair Event Horizon: He crosses this when he believes Tsukuyomi dies in the bus crash that took the lives of Sougo's and Hiryu's parents which she could have caused all because of his own reluctance to use Geiz Revive to kill Sougo. He comes back when Sougo shows just how much he treasures Geiz as a friend and seeing that Tsukuyomi isn't dead.
• Deuteragonist: Geiz's growing relationship with Sougo is a major part of the entire storyline and even culminates in his death being what pushes Sougo to becoming Oma Zi-O.
• Dramatic Irony: He wants to kill Oma Zi-O, the man feared as the Demon King, yet he was the original Demon King himself in feudal Japan.
• Everyone Has Standards: Geiz made it clear that he is the only one who can defeat Sougo the moment he becomes Oma Zi-O. He, like everyone else has his limits; he is against White Woz's idea of attempted killing of Shinji Kido to prevent Dark Shinji/Another Ryuga from existing.
• Experienced Protagonist: Geiz is a warrior from the year 2068 and the first user of the Ziku Driver to become Kamen Rider Geiz.
• Foil: He acts as one to Tsukuyomi, both coming from the future where Oma Zi-O rules with an iron fist and traveling back in time to stop his rise. But while Tsukuyomi attempted to peacefully persuade Sougo from gaining his powers, Geiz came back to murder him. Tsukuyomi spends the early episodes trying to understand Sougo and stopping him from becoming evil while Geiz is eager to murder him. Geiz and Tsukuyomi both have trouble seeing Sougo as Oma Zi-O due to his current kindness and how they deal with this shapes their later interactions with him. Geiz's dedication to hating Sougo is slowly weakened by Sougo's kindness to the point he's very divided about killing Sougo compared to Tsukuyomi's early trust in Sougo has only made her dedicated to standing against him later on. They are also much more involved in Sougo's life than expected with Geiz's future battle with Sougo determining his future.
• Freak Out: He has this expression when he, Woz and Sougo are forcibly merged as part of the Zi-O Trinity transformation.
• Genius Bruiser: In contrast to Sougo's scribbled notes, his finishers in the BuildArmor generate a series of linear equations similar to Sento, strongly implying he's near the same level intellectually. Justified both because he comes from a much more advanced future and because he operates and presumably has to maintain equipment capable of time travel.
• Good Is Not Soft: A member of the resistance army who fight to give the future world freedom from the tyranny of Oma Zi-O and not afraid to get his hands dirty by killing who he think is the past self of his hated enemy. However, this attitude is almost always much more hindrance than help: it nearly even keeps Geiz from getting the Wizard Ridewatch because his social skills are so poor that Nitou doesn't even remember his name.
• Hair-Trigger Temper: He can go from stoic and unmoving to attempting murder screaming in two seconds flat. Better times, he express his disagreement with Sougo with a scathing glare. Worse times, he grabs Sougo and shakes him out of nowhere. When Sougo forces Woz to apologize in #28, Geiz tackles Woz and tries to strangle him (or something).
• Identical Stranger: His actor looks oddly similar to a young Ren Akiyama. This then comes full circle for a brief gag in Rider Time Ryuki when Shinji briefly mistakes him for Ren, complete with Satoshi Matsuda wearing his clothes.
• Insistent Terminology: He always refers to Sougo as Zi-O instead of his name. This supplies Geiz's out-of-character moment when he calls Sougo by name instead in #16, showing how hard Sougo's decision to give up the Ziku driver and thus his dream hits him.
• I Choose to Stay: In #46, his Another World (supposedly his ideal world) shows him having an honest heart-to-heart where he admits to Sougo that he wants to stay in the present and create a new future with Sougo's help. After being rescued, he tells Tsukuyomi that he's come to feel they belong in this era, and (grudgingly) thanks Woz for helping him figure it out.
• Knight Templar: As shown repeatedly, his mentality boils down to two options; you're either 'doing what's right' or 'an evil that must be destroyed'. This attitude repeatedly bites him in the ass, making him painfully easy for Sougo to manipulate.
• Meaningful Name:
  • "Geiz" is a German word which means "stinginess" or "miserliness".
  • It is also a case of Punny Name on English word "Gates" since in Japanese and Ancient Egyptian culture, Emperor of Japan (Mikado) and Pharaoh both having "gate" etymologies: "a gate connects god and human" or "a gate connects humanity and future".
• Morality Pet: Tsukuyomi is the one to have convinced Geiz to spare Sougo at first, and in general is the only one he listens to.
• Muscles Are Meaningless: Geiz definitely does not look like he can thrown a butter knife hard enough to lodge it into the counter, knock Another Rider down with a punch or lift a huge dumb bell.
• Murder Is the Best Solution:
  • Essentially the initial reason why Geiz came to 2018 - to kill Sougo before he becomes Oma Zi-O.
  • Also Played for Laughs in Heisei Generations FOREVER. While he and Geiz spy on a retconned Tsukuyomi who turned into a schoolgirl with beyond terrible grades, they spot Ataru getting a bit too close to the latter's liking, which leads to this exchange:
  *sees Ataru talking to Tsukuyomi*
  Geiz: Who's that? He's being chummy.
  Sougo: Could this be... her boyfriend or something?
  Geiz: Who's boyfriend?
  Sougo: Tsukuyomi's.
  Geiz: With who?!
  Sougo: With that guy.
  Geiz: With Tsukuyomi?! No way! Not on his life!!
  *Geiz whips out a charged Faiz Blaster X, about to fire*
• My God, What Have I Done?: An inverted case as My God What Haven't I Done as Geiz feels his hesitation made Tsukuyomi so desperate that she would kill Sougo as a child and because of that attempt it ended in her death. Thus he's dedicated to defeating Sougo to make up for his mistake.
• Nice Job Breaking It, Hero: Geiz's new determination to defeat Sougo might have unlocked the Geiz Revive Ridewatch but Geiz becomes completely determined to defeat Sougo at all costs that he actively ignores Hiryu. In #27 Geiz easily defeated Hiryu again but instead of destroying his Zi-O Anotherwatch, Geiz simply left him alone. This made Hiryu realize he couldn't beat Geiz or Sougo and started to create an army of Another Riders just to have a chance to get revenge.
• Not So Above It All: Despite being the Hot-Blooded Blood Knight of the team, he's afraid of ghosts and a low-budget horror movie left him up all night in fear. When the others decided to scare him enough to overcome his fears, even the anatomy mannequin put him on edge because it reminded him of the middle school urban legends the movie was based on.
• Oblivious to Love: He's utterly clueless about Ora's flirting with him in Geiz: Majesty.
• Only Sane Man: When Sougo's terrifying power as Zi-O II drives his friends away, Geiz is the most reluctant to break off their relationship due to his previous Character Development having taught him to second-guess his antagonism towards Sougo. No good deed goes unpunished, though, and Geiz's hesitation is what ultimately brings about the events that send him tumbling over the Despair Event Horizon.
• Paper-Thin Disguise: Geiz does a good job of acquiring appropriate clothes for whatever environment he's supposed to be going undercover in... and then wears his collar and watch holder on top of the disguise. Tsukuyomi does the same thing with her mantle, so maybe it's a 2068 thing.
• Properly Paranoid: Geiz has a reason to be hostile towards Sougo, knowing fully that he will become Oma Zi-O and will not hesitate to put him down when that happens. #16 finally justifies this the moment Tsukasa sends Sougo into 2068 and meets his future self in person.
• Protagonist-Centered Morality: In #26, Geiz sees Tsukuyomi in what looks like an attempt to kill Sougo as a child, which appears to be the cause of the bus crash that killed Sougo's parents along with a bunch of innocent people, including Another Zi-O's family. Is his takeaway the realization that their goal to change the future had gone too far, as well as the possibility that Tsukuyomi may have been the cause of Sougo beginning his path to becoming Oma Zi-O and that Another Zi-O's grudge was her fault? No. He feels that Tsukuyomi's death was his fault because he was hesitating in killing Zi-O, resulting in him gaining the resolve to become Geiz Revive. A very messed up moral there.
• Reincarnation Friendship: After dying thanks to Swartz, Sougo uses his time powers to reincarnate him as Keito Myokoin in the new timeline.
• Shell-Shocked Veteran: The otherwise-comedic Bibibi no Bibill Geiz Hyper Battle Video very briefly implies Geiz has PTSD from his experiences in the Resistance, as he briefly catches a specter of someone from the group and seemingly experiences a flashback, leaving him incoherently babbling affirmations to the "person."
• Stolen MacGuffin Reveal: Was revealed in #13 that the Ghost and Drive Ridewatches he has (and supposedly all his other Rider equipment) were secretly stolen from Oma Zi-O prior to coming to 2018. #41 reveals that this is not a good thing, as Oma Zi-O can hijack the Drive powers of Grand Zi-O, because it came from his RideWatch.
• The Team Normal: Downplayed as Geiz is a Kamen Rider and has the powers that entails but as the series continues you realize Geiz is the only one of the heroes without inherent super powers. Sougo and Tsukuyomi have time powers and Woz was able to easily block a punch from an Another Rider long before he became a Kamen Rider himself.
• Teeth-Clenched Teamwork: Big time. As far as he can tell Sougo is going to be the person that ruins his time - but as long as Sougo's up against the same monsters that he is, they're going to have to do this together. And after he gets over that, it shows up again with Black Woz. Only this time, it's mutual.
• The Lancer: Like many secondary Riders, his philosophy clashes with Sougo's immensely. Whereas Sougo tries to help most of the people around him, Geiz is outright hostile toward anyone other than Tsukuyomi, has a Hair-Trigger Temper and generally subscribes to an inherently cynical view of the world.
• The Needs of the Many: Whether it's wanting to kill Sougo before he can become Oma Zi-O or wanting to kill Another Riders regardless of what they've actually done so far, Geiz has no problem with bringing harm to potentially-innocent individuals for the sake of everyone else. This changes when working with Sougo puts him in the position of helping others, to the point that he tries to avoid taking the Quiz Ridewatch so Mondo can resolve his own family history. And later on getting disgusted with himself for even briefly considering White Woz's plan to kill Shinji Kido to destroy Another Ryuga.
• The Only One Allowed to Defeat You: Towards Sougo, in order to prevent the latter's ascension into Oma Zi-O. He doesn't take it kindly when Hiryu tries to claim this as his right and is capable of postponing his attempts to fight Sougo, so he could take on whoever wants to do the same.
  • This holds up even after the timeline reset, with Geiz stating that he will defeat Sougo if he ever becomes a Demon King and Sougo fully counts on him to do so.
• Took a Level in Kindness: Slowly but surely Geiz is growing out of his Knight Templar mentality.
• Tsundere:
  • Possibly overlapping with Defrosting Ice Queen. Geiz makes it clear that he, in no way, considers Sougo a friend, but later in the series he starts to realize that he's becoming soft around him. Following his escape from Helheim forest, he renews his vow to kill Sougo...and then promptly worries with Tsukuyomi over his seemingly-dead body when his soul is sucked out in a botched attempt by Another Ghost.
  • He finally caves in and calls Sougo his friend in #28. It doesn't change anything on the fact that he might have to kill him one day, but for the time being, they're okay.
• Unlimited Wardrobe: Save for his watch holder and collar, Geiz has a new outfit in every episode. The fact that he wears the watch holder and collar over each new outfit, regardless of how badly it clashes, acts as a Running Gag.
• Unwitting Pawn: Reaching the point of deconstruction. Geiz's hatred of Oma Zi-O has made the man frighteningly easy to manipulate with almost every faction, including Sougo himself, using him for their own benefit multiple times. Geiz is capable of learning a little bit from this, and even manages to get one over on White Woz, but his stubbornness makes the lesson have a hard time sticking. Sougo even once manages to manipulate Geiz into killing himself, without meaning to, because he's just that easy to fool. It is very telling that even when he manages to obtain Geiz Revive, the power that would allow him to avert the Bad Future and succeed in his mission, he's STILL getting played like a chump by White Woz.
• What You Are in the Dark: When no one is looking and something happens to Sougo, Geiz gets visibly upset as he just can't bring himself to hate the guy despite how he usually acts towards him.
• We Used to Be Friends:
  • #7 indicates he and Woz were friends at one point. It's left in the air what Noodle Incident split them apart.
  • #29 officially reveals what had occurred between the two, revealing Woz was the commanding officer of the Resistance unit that Geiz and Tsukuyomi were in. At some point, orders came through to have someone infiltrate and get close to Oma Zi-O, with Woz volunteering to do so. Whatever happened behind the scenes resulted in Woz defecting to Oma Zi-O, and deliberately feeding the Resistance false information and being the cause of many of his former comrades' deaths.
• Why Can't I Hate You?: Platonic variant towards Sougo. He admits in #15 he has trouble seeing the present Sougo as Oma Zi-O just due to how different and nice Sougo is. Thus he's actually quite conflicted about his mission even begging Sougo to just throw away his belt so he doesn't have to kill him.

Tropes exclusive to him as Kamen Rider Geiz

Rider Time! Kamen Rider Geiz!

Rider Time! Kamen Rid~er Geiz! Re~vi~i~ve Go~retsu~! Goretsu!

Rider Time! Kamen Rid~er Geiz! Revi-Revi-Revi Revi-Revi-Revi Revi-i-ve Shi-ppu! Shippu!

Majesty Time! G3, Knight, Kaixa, Garren, Ibuki, Gatack~! Zeronos, Ixa, Diend, Accel! Birth, Meteor, Beast, Baron~! Mach, Specter, Brave~! Cross-Z~! Kamen Rider~! Ye~ah! Geiz Maje~sty~!

• All Your Powers Combined: His reincarnation Keito gets ahold of the Geiz Majesty Riderwatch in the V-Cinema movie Geiz, Majesty thanks to Daiki Kaito's Rider Cards, which combines the powers of the Heisei Secondary Riders the same way the Grand Zi-O watch does the Main Riders to defeat Another Diend/White Woz.
• Boring, but Practical: Compared to Zi-O II and Woz's wide arrays of flashy abilities, GeizRevive only has three tricks: Goretsu is monstrously strong, Shippu is faster than lightning, and Geiz can change between the two in the blink of an eye. With it he can defeat Zi-O not by outmatching or negating his time-manipulating abilities, but through sheer brute force.
• Chainsaw Good: The first of his upgrade form's weapon the Zikan Jaclaw. Goretsu form seems to favor it.
• Deadly Upgrade:
  • What GeizRevive turns out to be. According to Black Woz, the GeizRevive Ridewatch's power is caused by compressing and expanding time itself which puts a huge strain on his body, to the point that he experiences several nosebleeds, bloody tears and even spitting out blood after canceling his transformation.
  • This drawback was eventually dropped, with Producer Shirakura explaining it as Geiz physically adapting to constant usage of it in a similar vein to adapting to a routine exercise.
• Fragile Speedster: What Shippū is for Geiz. Trading power and defense for overwhelming Super-Speed, Shippū is a monster in speed blitzing the enemy which doesn't give them time to react at all and even said enemy used teleportation to escape, Geiz just outrun them and strike them without hesitation.
• Finishing Move:
  • Time Burst: Geiz creates an image of the future of his foe, mid-explosion, as several projections of his face characters and his boot's design extend out to his enemy. The image moves back in time until it and the enemy meet, and then the enemy follows the image's path until they explode. Alternatively, Geiz can instead ram the enemy while on the Ride Striker.
  • Omega Time Burst: In GhostArmor, Geiz preforms a copy of the Ore Omega Drive as his right foot glows with an orange flame created by the Parka Ghosts, and he performs a flying kick covered in spiritual energy. Alternatively, he can create a ball of orange spiritual energy before throwing it at the enemy.
  • Hissatsu Time Burst: In DriveArmor, Geiz performs a copy of the JustiSmash finisher as he speeds around his enemy, and rapidly punches them. Alternatively, he can send Shift Tires flying towards his opponent.
  • Vortex Time Burst: In BuildArmor, Geiz performs a copy of Build RabbitTank Form's Vortex Finish attack. Alternatively, he can perform Zi-O's finisher by attacking with the Drill Crusher Crusher.
  • Exceed Time Burst: In FaizArmor, Geiz summons the Faiz Pointer Pointer and performs a copy of Faiz's Crimson Smash Attack. Alternatively, he can summon the Faiz Shot Shot and perform a copy of Faiz's Grand Impact Attack
  • Strike Time Burst: In WizardArmor, Geiz levitates into the air and kicks through a Wizard-styled Magic Circle, his leg growing to massive proportions (resembling a combination of Wizard's Big and Extend powers).
  • Critical Time Burst:
    • In GenmArmor, Geiz circles around his opponent in high speeds, destroying anything in his way, before finishing him off with a Rider Kick.
    • In Ex-AidArmor, Geiz jumps up and hits the enemy with the Gashacon Breaker Breakers before jumping around the enemy and delivering a kick.
  • Hyakuretsu Time Burst: In GeizRevive Shippu, Geiz performs a quick flying side kick charged with blue energy before quickly kicking the enemy from all directions.
  • Ichigeki Time Burst: In GeizRevive Goretsu, Geiz performs a flying side kick charged with orange energy.
  • Zakkuri Cutting: By channeling a Ridewatch's power into the Zikan Zax's in Ono Mode, he performs a powerful slash.
  • Giwa Giwa Shoot: By channeling a Ridewatch's power into the Zikan Zax's Yumi Mode, he fires a special arrow.
  • Super Noko Setsuzan: By channeling a Ridewatch's power into the Zikan Jaclaw's Noko Mode, he performs a powerful slash.
  • El Salvatore Time Burst: As Geiz Majesty, he either delivers either a Rider Punch or a Rider Kick charged with the power of all of the previous Secondary Riders.
• Humongous Mecha: Like Zi-O, Geiz has a Time Mazine to use for time travelling to the past, and battling against the Time Jacker's own Time Mazines. His seems to be a custom version as it's red instead of white. As with Zi-O's, it can access the abilities of past Riders should Geiz use a Ridewatch while piloting it.
• Jack of All Stats: Zi-O Trinity acts as this compared to GeizRevive for Geiz. While not as strong as Goretsū or as fast as Shippu, it's strength and speed is a good intermediary as well a safe alternative to the at first dangerous GeizRevive
• Lightning Bruiser: On paper, GeizRevive is this to Zi-O II, having a much higher ability perimeter. In practice however, Goretsū granted Geiz an enormous strength and impressive defense to fight up close while Shippu trading a bit of defense for bursts of Super-Speed to Speed Blitz Zi-O II even when the Combat Clairvoyance of Zi-O II is active.
• Midseason Upgrade: As stated above, Geiz can use Decade's Ridewatch. However he also gets the GeizRevive Ridewatch which can evolve him into Geiz Revive. Unlike Zi-O, Geiz gets two forms out of the upgrade, either Goretsu, or "firey", or Shippu or "windy". To adhere to Multi Form Balance Goretsu acts as the power form, while Shippu is the speed form.
• Mighty Glacier: What Goretsū is this for Geiz. Trading speed for excellent defense and powerful brute strength, Geiz tanked even the enemy attack and fight them up close.
• Power Copying: Like Zi-O, Geiz can access the Rider Armor, and gain the abilities of his predecessors when placing a Ridewatch on the left side of the Ziku Driver, or can assume stronger personal forms. These include:
  • GhostArmor: Geiz gains the abilities of Kamen Rider Ghost, such as invisibility, intangibility and is capable of levitation at will. He can also summon Parka Ghosts as reinforcements through the Eyecon Shoulders.
  • DriveArmor: Geiz inherits Kamen Rider Drive's speed, and can launch energy variants of the Type Speed Shift Car through the Shift Speed Speeds on his wrists.
  • BuildArmor: Gains access to the Drill Crusher Crusher, Build's own Drill Crusher turned into a Blade Below the Shoulder. Thanks to the FullBottle Shoulders, Geiz has access to the Rabbit and Tank powers. This armor is primarily used by Zi-O.
  • FaizArmor: Geiz inherits Faiz's weapons such as the Faiz Shot Shot (similar to the normal Faiz Shot), and the Faiz Pointer Pointer (similar to the normal Faiz Pointer).
  • WizardArmor : Geiz inherits Wizard's magical abilities.
  • GenmArmor: Geiz inherits Genm's abilities, mirroring those of Ex-AidArmor except without the Gashacon Breaker Breakers, and gaining the speed and agility of Genm's favored Level 3 Gashat, Shakariki Sports. He can also throw energy versions of the Trick Flywheels. When combined with a Time Mazine, he can make use of Genm's Warp Pipes to confuse his opponents.
  • Ex-AidArmor: Gains access to the Gashacon Breaker Breakers, pile driver variants of Ex-Aid's Gashacon Breaker (in Hammer mode). He can also jump higher, and create energy blocks for platforming purposes. This armor is primarily used by Zi-O.
  • GeizRevive: Gains access to two forms, each stronger than Zi-O II.
    • Revive Goretsu: A Mighty Glacier that wields the Zikan Jaclaw in saw form.
    • Revive Shippu: A Fragile Speedster that wields the Zikan Jaclaw in claw form.
  • Geiz Majesty: Geiz is adorned with the power of all of the previous Secondary Riders before him, and has access to their weapons.
• Red Is Heroic: Grim as his mission may be, Geiz is a heroic Rider through and through. His armor is a deep scarlet to match. Adding to that he tends to keep the Ridewatches of primarily red Riders such as Wizard, Faiz and Drive.
• Shed Armor, Gain Speed: GeizRevive Shippu trades the thick armor and enormous strength of Revive Goretsu for Super-Speed so great that even being able to predict the future isn't enough to reliably dodge Geiz's attacks.
• The Straight and Arrow Path: The second weapon form, and his ranged option.
• Time Master: A more subdued example; his Time Burst ability is described as having a special type of lag, which means that the attack is actually delayed in time.
  • GeizRevive. In this form, he's outright compressing and expanding time to boost his abilities beyond his body's own limits. This is also why Zi-O II can't simply predict his attacks; it's not so much he's too fast so much as time itself is being bent all around to speed him up.
• Wolverine Claws: Mode two of his Zikan Jaclaw. Perfect for close quarters fights, likely why Shippu uses it.

Tsukuyomi (Unmarked Spoilers)

Tsukuyomi/Alpina/Kamen Rider Tsukuyomi/Alpina Tsukuyomi

Portrayed by: Shieri Ohata (live), Natsumi Sano (suit)
Young Tsukuyomi Portrayed by: Yui Matsushima

A mysterious girl from 2068 and Geiz's fellow resistance member who travels alongside him to 2019. Unlike Geiz who advocates outright killing Zi-O, Tsukuyomi instead chooses to guide Zi-O from the path of villainy by having him meet and learn from past Riders, in the hope that he becomes a heroic Kamen Rider.

Her true identity is later revealed to be Alpina, a princess of a royal family hailing from another timeline with the power to control time, as well as the younger sister of Swartz. She eventually gains the ability to transform into Kamen Rider Tsukuyomi.

Tropes that apply to her in general

• 11th-Hour Ranger: Tsukuyomi gains the ability to transform into Kamen Rider Tsukuyomi in #48 just before the final battle.
• Action Girl: She is a member of the the future's resistance army and has no problem handling herself in a fight, managing to hold her ground against Another Build with little but a blaster. While the blaster's effectiveness quickly plummets against serious threats, upon gaining her own time-stopping abilities she begins readily using them in fights.
• All-Loving Hero: At least when it comes to Sougo, being the first time traveler to believe that he doesn't have to become Oma Zi-O. Her confidence in him isn't limitless, though, and later events shake her confidence in her decision but this gets subverted pretty quickly if not outright strengthen her faith in him even more.
• Aloof Dark-Haired Girl: Subverted. While she does look like one since she is a beautiful young woman with calm and collected personality but she is more friendly and pleasant to interact with when compared to the Hair-Trigger Temper Geiz.
• Ambiguously Human: The reveal of her time powers put into question what she even is when Swartz says they're cut from the same cloth. #43 reveals that she is human, but from a different timeline than the rest of the cast.
• Amnesiac Hero: She has no memories of her past before joining the future's La Résistance, courtesy of her brother.
• Amnesiacs are Innocent: As Alpina, Tsukuyomi was fully on board with Swartz's plans which would have resulted in millions of deaths. But after losing her memories Tsukuyomi became an All-Loving Heroine who deeply values life and tries to prevent as much death as possible.
• Apocalypse Maiden: An indirect example, as it's established by the end of the Gaim arc that Tsukuyomi and Geiz's actions are helping bring about the very Bad Future they want to prevent. It was a direct example initially, as Alpina was completely on board with her brother's plan until he betrayed her.
• Betrayal Insurance: To give her a fighting chance against Swartz, Sougo and Tsukasa devise a plan where Sougo travels to 2068 to give Tsukuyomi a Blank Watch to store some portion of her powers, so that when the time comes where Swartz steals her powers he could not manage to take all of it, much like Tsukasa with his Decade powers. This, and further empowering from Oma Zi-O, allowed her to use her remaining powers to transform into Kamen Rider Tsukuyomi, to face Swartz as Another Decade.
• Boyish Short Hair: During the special crossover with Decade she cuts her long hair into bob cut.
• Cain and Abel: #38 reveals she's Swartz's younger sister, thus the heroic Abel to his Cain.
• Color-Coded Characters: Even when Tsukuyomi isn't wearing one of her white dresses, she retains that white mantle over whatever disguise she ought to be in at the time.
• Contrasting Sequel Protagonist:
  • To Misora Isurugi and Gentoku Himuro
    • Misora had powers coming from a Living Macguffin because said Macguffin is warning them about an alien planning to do an Apocalypse How on Earth because it did said apocalypse on other planets For the Evulz, while Tsukuyomi had powers that manipulated time due to relating to the Big Bad and also because she comes from another timeline. In addition, Misora was a Genki Girl who wanted to be a normal girl, while Tsukuyomi has no need to be a normal girl due to wanting to Set Right What Once Went Wrong.
    • While Gentoku and Tsukuyomi are the resident fourt Riders who were The Stoic that are sometimes Not So Above It All, that maybe the only similarity. Gentoku intitially became the Big Bad then Demoted to Dragon due to being a Shell-Shocked Veteran, Tsukuyomi wanted to Set Right What Once Went Wrong because of the Bad Future that's going to happen. In addition, Gentoku became a Kamen Rider halfway to the series, while Tsukuyomi became one before the Grand Finale.
  • Both Tsukuyomi and Koyomi starting out as a Mysterious Waif with no memories of their past, being a close companion and support to the series' hero, and them being related to the series' main antagonists. However, unlike Koyomi, who was horrified by her father causing the first Sabbath and his planning to create a second one, Alpina actually went along with her brother's plan to destroy the multiverse until he wiped her memory. In addition, while Koyomi only became an evil Rider in a movie, Tsukuyomi becomes a heroic one near the end of her series (which in turn parallels Mayu/Kamen Rider Mage).
  • Just as Sougo and Geiz can be compared and contrasted with Tsukasa and Kaito from Kamen Rider Decade, Tsukuyomi is easily compared and contrasted with Natsumi Hikari from the same series. Both Natsumi and Tsukuyomi spend their series working to keep their series' main character from becoming evil and become white-colored Kamen Riders at the end. But while Natsumi was a normal person thrust into insanity due to her taking in an amnesiac Tsukasa, Tsukuyomi is a member of a royal family with time powers whose big brother kickstarted the plot. Also Natsumi became a Kamen Rider using a Transformation Trinket from an anniversary series in a movie, while Tsukuyomi becomes a Kamen Rider using her series' Transformation Trinket in said series.
• Die or Fly: Tsukuyomi awakens her time powers in #31 when an Another AgitΩ is about to attack her.
• Does Not Know His Own Strength: Due to her amnesia, she didn't realize that she had time powers.
• Dub Name Change: In the Korean dub of the show, her name was changed to Selene.
• Everyone Calls Him "Barkeep": She was named Tsukuyomi by the resistance, due to her not remembering her real name. Her true name is Alpina, but most of the cast still calls her Tsukuyomi even afterwards in the post-series spin-offs.
• Face Death with Dignity: Or Face Fading into Nonexistence with Dignity. While doing the former, she entrusts the futures of her and Sougo's worlds into Sougo's/Ohma Zi-O's hands with a small, peaceful smile on her face, in contrast to her brother Swartz's rage, disbelief, agony and excruciating pain over his failed Xanatos Gambit while he also fades into nonexistence. Of course, Sougo rewrites the timeline and revives her, so her death doesn't last long.
• Fake Defector: In the final episode, she feigns defecting to Swartz’s side after receiving her Ridewatch. This leaves Swartz vulnerable to an attack from behind by Tsukuyomi as he’s trying to escape back to his dimension, and gives Sougo an opening to destroy Swartz for good.
• The Fatalist: A downplayed example, but Tsukuyomi believes that if Sougo gains the power of Oma Zi-O, his destiny to become evil will be set in stone. This prompts her to briefly reverse her stance about killing Sougo upon his displaying the might of Zi-O II, an earlier version of that same power.
• Foil: She acts as one to Geiz, both coming from the future where Oma Zi-O rules with an iron fist and traveling back in time to stop his rise. But while Geiz came back to murder Sougo, Tsukuyomi attempted to peacefully persuade Sougo from gaining his powers. Geiz spends the early episodes eager to murder Sougo while Tsukuyomi tries to understand him and stop him from becoming evil. Geiz and Tsukuyomi both have trouble seeing Sougo as Oma Zi-O due to his current kindness and how they deal with this shapes their later interactions with him. Tsukuyomi eventually trusted him so much that she thought it was impossible for Sougo to become Oma Zi-O and the realization of Sougo potential power and evil drives her against him compared to Geiz's whose initial distrust of Sougo ironically makes him more hesitant to go against him. They are also much more involved in Sougo's life than expected with Tsukuyomi being involved in the accident that killed his parents and being present in the moment that shaped Sougo's dream.
• Foreshadowing:
  • Tsukuyomi not knowing who Oda Nobunaga is while Geiz does makes more sense when it's revealed she has amnesia.
  • In Heisei Generations Forever, when Tsukuyomi loses her memories, she doesn't know why someone would call her Tsukuyomi. [This hints that her real name isn't actually Tsukuyomi.
  • Tsukuyomi being from another timeline is hinted when she and Tsukasa visit her past in the Kabuto Arc and they see her childhood home is a huge house in 2058. Tsukuyomi said the remaining people still alive under Oma Zi-O's rule, live in refugee camps which makes it odd that Tsukuyomi's family alone is living in luxury.
  • In #15 of the Kamen Rider Zi-O Supplementary Plan where they discuss what would happen if Sougo did give up being Zi-O for good, Tsukuyomi suggested she take over with the show being named Kamen Rider Tsukuyomi. In #48, Tsukuyomi becomes a Kamen Rider herself.
• Good Counterpart: To Woz, who she competes with regarding their desired paths to guide Sougo towards, and later to Swartz as his sister. Played with in the latter case, as she wasn't always good.
• Gender-Blender Name: "Tsukuyomi" is the name of the Japanese lunar deity, who is depicted as a male. Fittingly enough, her Rider form features the moon.
• The Heart: Due to her status as Geiz's Morality Pet, she more or less keeps the trio together. She helps bring about Geiz and Sougo's conflict in the Geiz Revive storyline by losing her faith in Sougo, and she's ultimately responsible for resolving the storyline by convincing the pair to stand down.
• Hime Cut: She has this hairstyle, though it's pretty clearly a wig.
• Horrible Judge of Character: Downplayed, in that she's completely right that Sougo would never want to become Ohma Zi-O, but completely wrong that he never would.
• Hypocrite: Part of the reason for her Heroic BSoD in #31-32 is that she feels she's this because she turned against Sougo for his growing time powers only to learn that she also has time powers. Potentially stronger ones.
• I Hate Past Me: She doesn't get along with her past self very well, especially given young Alpina was completely on board with Swartz's scheme to wipe out all the competing timelines.
• I Just Want to Be Normal: Tsukuyomi didn't react well when she realized she had time powers in #31. Given said powers have only been shown to belong to Oma Zi-O as well as former and current Time Jackers, it's understandable.
• Identity Amnesia: #31 reveals that she lost all of her memories from before she joined the resistance, Tsukuyomi isn't even her real name. She claims that she's fine with it now.
• Let's You and Him Fight: In #1 and #11, she gets an unwilling Sougo into fights by making threatening remarks while affecting a deeper voice, making it sound like he was the one doing the threatening. In the latter case, Sougo even remarks "Wow, deja vu..."
• Logical Weakness: While Tsukuyomi's ability to stop time is very useful, it requires a physical gesture to activate, making her vulnerable to threats that move too quickly to react or can restrain her from being physically able to gesture. Fights between her and the Time Jackers are decided by who stops the other first.
• Magical Computer: In #1, she pays an Edo-era shopkeeper by literally swiping coins off the screen of her tablet, which causes them to drop into the woman's open hands. In #10, she uses it to heal Geiz's injuries.
• Meaningful Name: Going along with the time theme of the series, Alpina is a brand of Swiss watches. Swiss watches are known for being top quality to the point where they can virtually last forever, which references her being next in line as ruler in her own time.
• Moral Event Horizon: In-Universe example: She considers Zi-O II to be Sougo's, and seeing him use its time-manipulating powers to undo death and sculpt every event to his liking is enough to finally turn her against him. It may have been a bad idea.
• Nightmare Fetishist: Has way more fun than even Woz or Sougo while scaring the crap out of Geiz in Bibill Geiz. She also really wants to meet a ghost in person.
• Non-Lethal Warfare: In #1, she uses the Faiz Phone X to knock Sougo, Sento and Banjo unconscious so she can get the former back to 2018.
• Not So Above It All:
  • If #13.5 is anything to go by, she seems to have a crush on Ryoma Takeuchi.
  • In Bibill Geiz, she is a lot less stoic and melancholy than in the main series. She laughs a lot more, messes with the guys by making herself look like a Stringy-Haired Ghost Girl, engage in many nonsensical stuff, and at one point skips. This is a character who rarely even smiled before. She also seems to be the one who picked the horror movie they had all seen the night before (though only Geiz was scared too much by it) and chose a haunted school as the place to force Geiz to confront his fears.
• Only Known by Their Nickname: "Tsukuyomi" is the name the resistance gave her. Late in the series, her true name is revealed to be Alpina.
• Only Sane Man: Relative to Sougo and Geiz early on, where Sougo appears to be a lazy dope and Geiz a bullheaded oaf. As both go through their character development, this role eases up and Tsukuyomi's own character flaws become more apparent.
• Paper-Thin Disguise: Like Geiz with his collar and Ridewatch holder, Tsukuyomi always wears her white mantle over whatever outfit she's supposed to be using as a disguise.
• Professional Butt-Kisser: She acts like one in the final episode to get on Swartz's good side to find an opportunity to kill him. It worked.
• Really Royalty Reveal: It turns out, Swartz and Tsukuyomi aren't only siblings, but in fact come from a currently mysterious royal family who are all Time Masters, and Swartz was the one who sent Tsukuyomi to 2068. Tsukuyomi was going to become Queen if not for Swartz's actions.
• Reincarnation Friendship: After dying thanks to Swartz, Sougo uses his time powers to reincarnate her as Alpina Tsukuyomi.
• Re-Power: Tsukuyomi becoming a Kamen Rider returns her time powers that Swartz stole.
• Sixth Ranger Traitor: Subverted; her apparent betrayal was so she could find an opportunity to kill Swartz.
• Student Council President: Her role in Sougo’s reset timeline.
• Surrounded by Idiots: She feels like this, because of everyone else's quirks which just leaves her exasperated.
• Teeth-Clenched Teamwork: Downplayed between her and Black Woz as they can work together fine but it's obvious that Tsukuyomi is distrustful of Black Woz.
• Time Stands Still: About halfway through the show, Tsukuyomi discovers that she has the same abilities as the Time Jackers.
• Took a Level in Badass: She was pretty badass before but #38 reveals she might have stronger time powers than any of the Time Jackers, even Swartz, being able to freeze a planet-sized asteroid in place. And then in #48 she becomes a Kamen Rider too.
• Trademark Favorite Food: Although not shown eating it, she is said to prefer super spicy foods, according to Geiz.
• Troll: Constantly fucks with Sougo, Black Woz and Geiz. By making a very good impression of Sadako from The Ring.
• Unlimited Wardrobe: She wears a different pastel or mostly white dress every episode—though she does keep her cape.
• Unwitting Instigator of Doom: It's soon clear that Tsukuyomi and Geiz are enacting a Stable Time Loop and bringing about the very future they want to prevent. In a lesser example, her presence on the bus crash in 2010 is what caused Swartz to damage the bus in a way that caused it to crash in the first place, killing all the adults while he escaped to 2019 with the kidnapped children.
  • To an even lesser extent, her very existence led to her being chosen as the heir over Swartz, who kickstarted the events in response. Though he of course is still at fault here.
• Walking Spoiler: Tsukuyomi's background is heavily tied to the series' plot and setting.
• Wouldn't Hurt a Child:
  • Initially it was thought that Tsukuyomi caused the bus accident that killed Hiryu and Sougo's parents when she opened fire and caused the bus to crash. In reality, however, she was trying to protect Sougo from Swartz. While she was under the idea that Zi-O needs to be killed, she won't go so far as to kill him as a child.
  • This was used against her in #47 where 2058 Swartz keeps his teenage appearance, knowing full well that Tsukuyomi cannot bring herself to shoot him despite his future actions and intentions.

Tropes exclusive to her as Kamen Rider Tsukuyomi

Rider Time! Kamen Rider Tsukuyomi! Tsu-ku-yo-mi!

• Badass Cape: Kamen Rider Tsukuyomi comes with a glorious white cape.
• Barrier Maiden: The reason Swartz and Tsukuyomi's world was dying was because it didn't have any Riders of its own, causing it to conflict with the other worlds in the multiverse. Tsukuyomi gained her own Rider powers in order to stabilize her world and restore it.
• Finishing Move: Time Jack: Tsukuyomi leaps into the air as the sky momentarily darkens, revealing a glowing crescent moon in a background as her visor glows, then she delivers a kick surrounding by a glowing yellow spiral to her opponent.
• Laser Blade: She can make a white one from her hands called the Luminous Fractor and uses it to stab Swartz in the back.
• Light Is Good: Kamen Rider Tsukuyomi's main color is white and Tsukuyomi is an All-Loving Heroine determined to change the future for the better.
• Lightning Bruiser: According to the wiki, in terms of pure number alone, she outclassed Zi-O, Geiz, and Woz in their base form.
• Lunacy: Tsukuyomi's transformation sequence features the moon phases, and her visor is shaped like a crescent moon.
• The Smurfette Principle: She's the sole female Rider of her series.

Sougo Tokiwa/Oma Zi-O

See Sougo Tokiwa for more info.

Woz

Woz

See this page for more information.