Takumi Inui/Kamen Rider Faiz/Wolf Orphnoch
Portrayed by: Kento Handa
A snarky, brutish delinquent whom Mari came across by chance while chased by Orphnochs. He becomes the primary user of the Faiz Gear, and the one best-suited to using its multiple functions. Later revealed to be the Wolf Orphnoch.
- 555: Obviously. It's a pun on "Phi", "Fives" and "Faiz." Hilariously enough, 555 is a possible emergency number for Japan, meaning that every time he transforms he's literally dialing an emergency phone number for help... from himself.
- The Aloner: At first he doesn't enjoy Mari and Keitaro, preferring to act alone. Over time, he starts to accept their company and appreciate his friends.
- Artificial Stupidity: Due to the fact that its only priority is "Protect Mari" Auto-Vajjin initially doesn't do a very good job at protecting TAKUMI. It eventually becomes a reliable ally to him even performing a Heroic Sacrifice in the finale of both the series and the movie.
- Blood Knight: Mild example, he grew to enjoy being Faiz.
- Boomerang Bigot: He had a time of wanting to kill all Orphnochs despite being one himself. This can be justified, every Orphnoch he met was either killing everyone around him, or was in their human form the entire time. Not to mention the fact that he hated his Orphnoch transformation due to misunderstandings.
- Brought to You by the Letter "S": It's noticeably the Greek Letter Phi.
- The Call Knows Where You Live: Refused to have anything to do with the Mari in the beginning, but several unintended encounters with Orphnochs and the belt being stolen and used by someone later, finally decides to assume the role of Faiz after seeing just how important that duty was, swearing to prevent it from being stolen.
- Catch-Phrase: Not in the series, but his speech showing just how serious he is about protecting people has become iconic to him, having him declare it in many crossovers and game appearances.
I don't have dreams. But you know, I can protect them.
- Character Tic: His wrist flick, which he uses to either taunt opponents, start a battle or signal that he's about to do something awesome. He also kneels before every kick finishernote , and only uses Flying Side Kicks (The iconic Rider Kick style) for his kick finishers. These allow the viewers to know that it's Takumi wearing the suit and not anyone else.
- Cool Bike: Auto Vajin's Vehicle Mode his Faiz's personal motorcycle. It can drive by itself and has armor made from a similar material as the Rider Gears.
- Deadpan Snarker: He even says it in his nature to be sarcastic.
- Deal with the Devil: He joins Lucky Clover to get Smart Brain to save Mari.
- Death Seeker:
- When he was tricked into thinking he attacked the Ryusei School reunion, he actively tries to get Kiba to kill him.
- Played straight in Kamen Rider Taisen, where due to not being able to save Kusaka and his friends, he wonders if he deserves to live.
- Completely inverted in Kamen Rider Yongou, where he ACTUALLY died during his series' ending. Due to being revived again, he wants some way to have everyone live, thus creating the time loops. In the end, even if he doesn't want to die again, Takumi destroys the time alteration machine.
- Defrosting Ice King: At the beginning of the series, he was as rude as possible and tried to distance himself from Mari and Keitaro, only living at Keitaro's house as he was forced too. As the series goes on, he's noticeably less aggressive and more involved with his friends.
- Threatening Shark: Aside from the Phi and Wolf motifs, Faiz has this as a secondary motif. This is revealed in the Kamen Rider Decade Net Movies, and can be seen in the little fangs on his mouthplate.
- Face–Heel Turn: He had done this twice after he revealed his Orphnoch form in the series and again in a brief moment during the Kamen Rider Taisen incident.
- Fake Memories: In the movie, he sustained a head injury that lead to him becoming amnesiac, so the former Smart Brain scientist who saved him, renamed him Takeshi and gave him false memories in hoping he could take care of Mina.
- Finishing Move: Whenever Faiz inserts a Mission Memory into his gear and presses Enter on the Faiz Driver, he executes an "Exceed Charge" finisher.
- Crimson Smash: A Rider Kick that manifests as a red drill piercing the Orphnoch.
- Axel Crimson Smash: A variant augmented by the Super Speed of Axel form.
- Blaster Crimson Smash: Another variant with increased power from Blaster form.
- Grand Impact: A Rider Punch with the Faiz Shot.
- Axel Grand Impact: A variant augmented with Super Speed.
- Sparkle Cut: A Rider Slash that powers up the Faiz Edge, traps the enemy with a Sword Beam and finishes it off with a powerful slice.
- Faiz Blaster Sword Mode: "Photon Breaker", which coats the Faiz Blaster in Photon Blood energy for a powerful slash.
- Faiz Blaster Gun Mode: "Photon Buster", which shoots out a massive beam from the Faiz Blaster.
- Gatling Good: Fires bullets rapidly from its front wheel.
- Handguns: Faiz Phone. Notably one of the few examples where the Transformation Trinket doubles as a weapon.
- Heel–Face Turn: After he resolves to become the main wearer of the Faiz Gear once again.
- The Hero: Takumi is the primary protagonist of Kamen Rider Faiz although he sometimes gets overshadowed due to the vast majority of characters and his initial boredom until he got serious about becoming a Kamen Rider.
- Heroic B.S.O.D.: Twice, once when he is rescued by Yuka. After he finds out that she is an Orphnoch, and questions if other Orphnoch aren't complete monsters, making him unable to fight. He gets over it, as he realizes that he should only attack those attacking humans. The second time is when he couldn't protect Mari from Sawada, causing her death. This is only further when he is forced to transform in front of his friends and have them be scared of him for a few episodes. It got worse again, when he was tricked into thinking he attacked the Ryusei School reunion, causing him to be a Death Seeker.\\\ Then, it happened a third time in Heisei Rider Vs Showa Rider Kamen Rider Wars Featuring Super Sentai via Retcon to have Kusaka die in Takumi's arms, leading to him suffering a ten year BSOD that ends up getting snapped out with thanks to Kensuke Jin, Kamen Rider X.
- He Who Fights Monsters: Played Literally. Takumi himself is the Wolf Orphnoch
- Hour of Power: Axel Form only lasts for ten seconds before Faiz reverts to normal.
- Hunter of His Own Kind: Takumi is actually the wolf Orphnoch.
- Ineffectual Loner: Tries several times to get away from Mari and the rest throughout the first arcs and throughout the series out of both being very antisocial and due to a misguided sense of protecting others, but it doesn't work. As it turns out, this is because he was afraid of hurting people and himself when their relationship inevitably ends.
- Jack-of-All-Stats: Faiz Form. Also this among the three Rider Gears, as the Faiz gear is the least powerful, but has multiple functions plus is the least likely to kill you off quickly.
- Jerkass Façade: It is later revealed he acts the way he does as he is scared of himself. And attempts to isolate people, so he can't hurt them.
- The Kirk: He's not too keen on friendship as his friends are, but he tries to be the mediator to his more stoic and emotional friends.
- Laser Blade: Faiz Edge is basically a Lightsaber like weapon whose blade is made of Sol Glass. It damages it's opponents not caused by the blade's sharpness alone and the energy it discharges once in contact with the target.
- Law of Chromatic Superiority: Not only is he the main Rider with Red as a notable secondary color, his Super Mode Blaster Form drives it home by flooding his suit with red Photon Blood.
- Leitmotif: "Double Standard", which describes his situation before the series and thanks to Mari, how much it's changed since he now has something to live for.
- Lightning Bruiser: Axel Form increases Faiz's power, speed, and defense for it's 10 seconds available while allowing Faiz to move at the speed of sound. The form can easily overpower high speed Orphnoch, with the power to destroy several at once, and can tank damage from almost an Orphnoch except Dragon. The drawback like most forms that fit this mold is that it has a 10-second time limit
- Meaningful Name: "Inui" contains the character for "dog" (Takumi is the Wolf Orphnoch.)
- Memetic Hand Gesture: His signature wrist flick, which displays both his refined, hi-tech aesthetic and identifies him. Whether he's wearing the Faiz or Delta Gears, you'll know it's him by that little flick.
- Mid-Season Upgrade: Midway through the season (episode 21: Accelerating Spirits), Kaixa gives Takumi the gadget that allows him to transform into Axel Form, his Lightning Bruiser form for the series and his strongest powerup until he gets Blaster Form.
- Mini-Mecha: Battle Mode.
- Power Fist: The SB-555C Faiz Shot was designed for specific compatility with the Faiz Mission Memory, transforming into an enerhy powered kunckle-duster Faiz can use for his Grand Impact Rider Punch attack. With Axel Form, he can use his enhanced speed to punch multiple enemies while running through them.
- Protagonist Power-Up Privileges: The reason he got Axel form was Kusaka gave him the device, for some reason. He only activated Blaster Form as he was mailed the Faiz Blaster.
- Shoulder Cannon: Bloody Cannon
- The Slacker: He notes he has no dream and just wants to travel around. After ten episodes worth of Character Development, he takes this slacker attitude in a very positive direction.
Takumi: You know, I don't have dreams. But I can protect the dreams of others.
- The Snark Knight: Very heavily. He's very apathetic towards everyone on the surface, but he's afraid of becoming close to people. When the time comes, despite his cynicism, he'll always do what he thinks is right.
- Super Mode: Blaster Form is his final ultimate form in the series, first seen in the movie before appearing in the show during episode thirty-nine.
- Super Speed: Axel Form gives him the speed of sound, but for only 10 seconds.
- Swiss Army Weapon: Faiz Blaster, which has the Blade and Blaster Modes aside from being the briefcase which commands every other function of the Faiz Blaster form.
- Transforming Mecha: Auto-Vaijin, his Cool Bike which not only looks cool and goes fast, but also houses all of his gear and can even transform into a Mini-Mecha in a pinch.
- Tsundere: A good case can be made for him. He is pretty snarky to everyone, but it's only a Jerkass Façade because he's scared of hurting people. He grows nicer to his friends as the series goes on.
- Wolf Man: A humanoid wolf as the Wolf Orphnoch.
Yuji Kiba/Horse Orphnoch/Kamen Rider Orga
Portrayed by: Masayuki Izumi
- Deuteragonist: Yuji is the secondary protagonist of the series, with almost enough focus and Character Development as Takumi and even became Faiz as the main hero for a while. He's also the first main deuteragonist to not be a Secondary Rider (even though he ends up using two three counting Paradise Lost rider gears).
- Fallen Hero: By the end, he ends up as an anti-villain after losing his humanity in Yuka's supposed death by the police and becoming the Chairman of Smart Brain.
- Heel–Face Revolving Door: Because he's confused about whether he's more human or Orphnoch, whether protecting either side is just, or whether either side is just at all, not to mention Kusaka mucking up any chance of him permanently becoming friends with Takumi, he allies with the main characters as much as he goes against them.
- Henshin Hero: Has briefly had time as both Faiz and Kaixa. Notably, he's the only non-protagonist in the history of the franchise, who has taken on the role of the protagonist Rider for more than two episodes (Yuji was Kamen Rider Faiz for four episodes). Then there's him becoming Orga in the movie.
- Kick the Son of a Bitch: He does this less than Yuka, but he ends up killing a lot of villainous Orphnochs and characters such as Kusaka who've murdered innocent people, played friends like chess, and were overall horrible people.
- Our Centaurs Are Different: Yes, he's the Horse Orphnoch, but his powered-up form does resemble a centaur more than anything else.
- Mighty Glacier: As Orga, Kiba has the best defensive and offense output of all the five Rider gears and even Faiz Axel. He has more power than Kaixa, more physical power and produces more Photon Blood than Psyga, and has more variety in his attack capabilities than Delta. It can also tank attacks from the Elasmotherium Orphnoch, the biggest and most dangerous, who killed Yuka, ate Kaidou, and smashed the Auto Vajin in one hit. The downside is that it is extremely slow, being unable to keep up with any of Faiz's forms, it's much slower than Kaixa and it's powerful armor is more weighted than the rest.
- Nice Guy: Yuji is a nice character that wants to protect humans and help Takumi in spite of his horrendous backstory. The only problem is that Kusaka has a nasty habit of tricking Yuji in fighting Faiz.
- Redemption Equals Death
- Trauma Conga Line: Holy. The first episode alone, has him being getting into a car accident putting him in a coma for 2 years. Then dying and reviving as an Orphnoch. He then finds, one his parents are dead, two he's homeless as his uncle sold his house, and that his uncle is corrupt. Three his girlfriend moved on and is dating his cousin, and his cousin tells him this in the most jackass way possible. Then he finds out his girlfriend was a Bitch in Sheep's Clothing the whole time.
Masato Kusaka/Kamen Rider Kaixa
Portrayed by: Kohei Murakami
A man whose one purpose in life is Mari's love
, and he'll do anything to have it
. Since all our heroes are quite close to Mari, this causes... problems
, not helped by the fact that even without that he's an unrepentant jerkass
. The primary user of the Kaixa Gear.
- Adaptational Villainy: Kusaka was never a saint in the series, but the non-canon novels make him far worse and cross lines he never would, namely, violently raping Mari at one point.
- All Love Is Unrequited: He was in love with Mari since childhood, she never knew till he flat out told her. And at the end she seemed more interested in Kiba and later Takumi. This doesn't end well for him.
- Anti-Hero: Verily, because of his backstabbing, scheming tendencies causing SO MANY problems. People are somehow unable to see how much of an ass he is despite this. Because his hatred is against the Orphnoch, he's a Designated Hero by virtue of being against the antagonists and monsters, yet even THAT falls flat on its face when he refuses to see the human side of Orphnochs even when some are genuinely good people, including Takumi himself.
- Brought to You by the Letter "S": The Greek letter Χ (Chi), which is part of Kaixa's motif as seen in his chest, his Memory Mission, and his insignia.
- Character Tic:
- Wiping his hands with hand wipes when out of Gear, or wiping his hands when in Gear. Takumi lampshades it and snarks if Kusaka is a germaphobe. It's a compulsion Kusaka developed after he imagined he had spilled blood on the night of the Ryusei School reunion.
- Occasionally, he'll adjust his collar while transformed.
- All his Rider Kicks are double dropkicks.
- Cool Sidecar: SB-913V Side Basshar, as the name would suggest. In vehicle mode, the Side Basshar can travel through rough terrain safely and the side car can move on it’s own. The tires are made of Sol Rubber, similar metallic properties to the Rider Gears. In Battle Mode, it’s transforms into a walking battle mecha is it’s stronger aspect. The sidecar has a a pincered heat point capable of generating temperatures up to 2000 degrees celsius during grappling attacks, and the machine can fire eight to forty eight misiles with a range of 2400 meters.
- Declaration of Protection: Towards Mari, he reacts with extreme violence if he thinks you are planning to do anything to her. Or be next to be.
- Died in Your Arms Tonight: Kusaka died in the retcon of his death in Heisei Rider Vs Showa Rider Kamen Rider Wars Featuring Super Sentai on Takumi's hands, asking him why someone as how as him has nothing to protect]].
- Fantastic Racism: He does not respect, care, or treat Orphnoch as normal human beings. While most of them were either a Monster of the Week, he sees the ones that aren't violent and even his own peers and potential allies as lesser beings that deserve to be murdered.
- Finishing Move:
- ''Gold Smash'': Kaixa jumps in the air and the Kaixa Pointer produces a pair of overlapping yellow energy drills around his foot while executing the deathblow with a double dropkicks.
- ''Grand Impact'': Using the Kaixa Shot, the rider uses a energy powered knuckle-duster to deliver a punch.
- ''Xeno Crash'': Kaixa shoots a constricting energy net from the gun section of the Kaixa Blaygun as the sword section is over-charged. Kaixa’s speed increase to slash the enemy with a dashing strike from the energy it discharges with the target.
- Freudian Excuse: The closest thing he has to a reason for the way he is involves being bullied as a child, Mari standing up for him, and the fact that the Orphnochs did attack him first and killed some of his classmates.
- Handguns: Kaixa Phone.
- Hate Sink: He is a generally unlikeable person who manipulates those in thinking he's a charming Anti-Hero, betrays allies for his own greed and lust, and even pisses off some of the villains. Even in his final moments, Kusaka is arrogant and sociopathic with almost no redeeming qualities as his death was much deserved.
- Jerk With A Heart Of Jerk: While his predecessors and many successors in the Secondary Rider line are more of Jerks With Gold Hearts, he's so far the first of said category to be a full blown Jerkass whom his so-called allies thought he changed his ways after Takumi's redemption, followed by Mitsuzane Kureshima (the latter is more of a Tertiary Rider). Curiously, Mitsuzane shared many traits with him.
- Karmic Death: In the Faiz novel, his stalkerish behavior towards and rape of Mari gets paid back by Kiba literally ripping him limb-from-limb and his getting "taken in" by his own Stalker with a Crush, Saya Kimura, very much in the fashion of Misery.
- Love Makes You Crazy: His unhinged obsession towards Mari is the main reason why he wants to get rid of everyone who is close to her.
- Manipulative Bastard: Good lord, he for a time had everyone around his thumb. Even at his death, Keitaro and Mari didn't completely understand how much of a bastard he was.
- Nominal Hero: Kusaka isn't so much of a hero or even anti-hero as much as he is a villain who just happens to hate the threat the heroes have to fight. And even then, he takes it further than the heroes have to by determining every Orphnoch he sees, or just anybody who gets in his way in general as so evil they only deserve the worst.
- Oedipus Complex: He once said to Takumi that Mari could become his mother. He even later grows to hate his step father.
- The Only One Allowed to Defeat You: Sees Takumi mainly as this.
- Out-of-Character Moment: Gave Takumi the Axel Watch for absolutely no reason stated, though it's likely that he didn't care either.
- Power Fist: Kaixa Shot.
- Retcon: His death in Heisei Rider Vs Showa Rider Kamen Rider Wars Featuring Super Sentai.
- Reverse Grip: Wields the Kaixa Blaygun this way. Justified, as the blade is uni-directional and the gun barrel is away from the traditional sword edge.
- Slasher Smile: Exhibit A◊
- Token Evil Teammate: He might be fighting against the Orphnoch, but he is a complete bastard. Attempting to taking Takumi's place in Mari's heart, or really ANYONE'S place in Mari's heart.
- Transforming Mecha: Side Basshar.
- Yandere: He gets violently jealous of anyone close to Mari.
Shuji Mihara/Kamen Rider Delta
Portrayed by: Atsushi Harada
The primary user of the Delta Gear.
- The Call Knows Where You Live: After getting the Delta gear, Smart Brain starts tracking his movements to get the belt back.
- Character Tic: All his Rider Kicks are Bicycle Kicks.
- Finishing Move: Lucifer's Hammer
- Friend to All Children: Having been an orphan once, he and Rina work at an orphanage, wanting to care for the children with no parents.
- Handguns: Delta Blaster.
- I Just Want to Be Normal: Which is why he is the perfect user for the Delta belt: he is one of the few that it's power didn't corrupt.
- Killed Offscreen: He doesn't show up in The Movie for this reason. The explanation comes in the prequel story Lost World (from S.I.C. Hero Saga), where Kusaka throws him to the Rose Orphnoch because he's (wrongly) convinced that Mihara was putting the moves on Mari.
- Refusal of the Call: Even before he got the Delta belt, he actively tried to ignore the weirdness going around him. Subverted later on, when he FINALLY realizes that he has the responsibility to fight for others.
- Ship Tease: He has some with Rina.
- Unskilled, but Strong: As the Delta user, he has the most power. But has no idea how to fight, nor does he want to.
Portrayed by: Yuria Haga
- Determinator: She has her moments. Like trying to transform into Faiz, despite knowing it won't work on her.
- Dude Magnet: She has three people after her. Kusaka and Sawada have loved her since childhood. While Kaido gets a crush on her as well. Based on extent that Takumi is willing to go for her, he probably likes her as well.
- Horrible Judge of Character: It actually cost her life once.
- Leitmotif: "Kaban" (Bag), which is about her entrusting her future to Takumi.
- Oblivious to Love: She never knew Kusaka and Sawada liked her since childhood, despite everyone else seemed to know.
Portrayed by: Ken Mizorogi
His family runs a dry cleaning service and he houses some of the crew.
Naoya Kaido/Snake Orphnoch
Portrayed by: Mitsuru Karahashi
- Death Seeker: Inverted in Kamen Rider Yongou where after having spent 10 years without his dead friends, he decides that death is completely meaningless and full of sadness, and is willing to protect Takumi's life at any cost... even if that's the whole world being under the reign of Shocker.
- Game-Breaking Injury: Had to abandon his ambitions to become a professional guitarist due to an injury to his hand.
- Oblivious to Love: Remains cheerfully unaware that Yuka has feelings for him.
- Sole Survivor: He is the last person alive of his own series following the conclusion of Kamen Rider Yongou. Kaido, however, wonders if Takumi is still walking on the face of Earth.
Yuka Osada/Crane Orphnoch
Portrayed by: Yoshika Kato
- Beware the Nice Ones: Sometimes kills Muggle criminals for fun.
- Break the Cutie: The reason for her eventually snapping and killing sister and basketball teammates.
- Broken Bird: Obviously, what with being the Crane Orphnoch and all.
- Kick the Son of a Bitch: That's the thing with her: Everyone she kills tends to be a gigantic jerk.
- Show Some Leg: Stops Teruo beating up Keitaro by lifting her skirt.
- Scape Goat: Her sister blamed her for pshing her down the hill, giving her a broken ankle when it wasn't her.
- Token Good Teammate: For the Renegade Orphnochs in general.
Kyoji Murakami/Rose Orphnoch
Portrayed by: Katsuyuki Murai
The president of Smart Brain, before his position was taken by Yuji kiba
. A well-mannered, but incredibly dangerous man who holds a bad reputation within his corporation.
- 0% Approval Rating: Everyone appears to deslike him to some degree, and he once suffered an assassination attempt at hands of his own employees for using dirty methods to gain his position at Smart Brain.
- Affably Evil: He may be the one behind Lucky Clover, but is actually a pretty affable person.
Portrayed by: Ray Fujita
Lucky Clover's youngest member and the most ruthless Orphnoch to work for Smart Brain. Kitazaki is a socially-withdrawn teenager with one thing in mind: to have fun at the expense of others.
- Ambiguous Disorder: Aside from his obvious sociopathy, Kitazaki's mannerisms suggest he may have an autism spectrum disorder.
- Ax-Crazy: Kitazaki is clearly the most unhinged Orphnoch among Smart Brain's elite.
- Big Bad Wannabe: Kitazaki really, really wants to be the main villain, but unfortunately for him, he is nowhere near as dangerous as the Arch-Orphnoch, and his unwillingness to accept this is what gets him killed in the end.
- Blood Knight: Kitazaki likes a good fight just as he likes killing, considering "fighting" and "playing" to be the same thing.
- The Bully: What he really is at his core, an obnoxious, disrespectful teenager who torments everyone around him and still thinks he is the best.
- Dragon-in-Chief: He is both stronger and faster than Murakami, but works under him solely to have his fun.
- Expy: From being a Big Bad Wannabe with Blood Knight tendencies and having the personality of a Serial Killer, Kitazaki seems to be one for Asakura from the previous season.
- The Friend Nobody Likes: The only person to show respect for him is Saeko Kageyama, and that's because she's the Team Mom; said respect is gone in the last episodes and she conspires with Takuma to betray him.
- Good Hair, Evil Hair: His hair is always messy and unkempt, the same can be said for his signature clothes, reflecting on how he ignores his own appearance to give more importance to things he considers to be fun.
- Hate Sink: Not to the same level as Kusaka, but from his arrogant attitude to his treatment of Takuma, it's hard not to hate him.
- Narcissist: Thinks he is better than his king, and tries to kill him just to prove it.
- Psycho for Hire: It's pretty clear that he is just following Murakami's orders to satisfy his boredom.
- Serial Killer: All Orphnochs working for Smart Brain qualify to a degree, but Kitazaki comes the closest to being the most accurate depiction of one in the series.
- Soft-Spoken Sadist: He rarely raises his voice, and it's hard for him not to smile or laugh while killing someone.
- The Sociopath: What Kusaka has in charisma, Kitazaki has in cruelty. Unlike Kusaka, Kitazaki makes no attempt to hide this, and is heartless person even if he's not in battle.
- Teens Are Monsters: The worst Lucky Clover has to offer, and not even an adult.
Teruo Suzuki/Arch Orphnoch
Portrayed by: Kayako Watanabe (child), Shun Kobayashi (shadow), Hiroshi Yanaka (Arch Orphnoch's voice)
- Creepy Child: When we first meet him, he's not more than an emotionless, anti-social child with no personality. Then we find out he's the Arch Orphnoch, the Final Boss of the series and he starts acting bizarre.
- Not Quite Dead: Got defeated by both Takumi and Kiba, the latter sacrified his life as a result. He got gravely wounded and placed under stasis under Smart Brain.
- Internal Homage: A grasshopper man with a scarf? Hmmmm...
- One-Winged Angel: As the Arch Orphnoch, he's an overpowered nearly unstoppable nightmare with it's host having no proper control and letting the Orphnoch take over.
- True Final Boss: While Murakami and the Lucky Clovers are the main antagonists for most of the series, Teruo's eventual awakening as the Arch Orphnoch has made him the last threat the riders has to face in the end.