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Yamashita Trading Co.

     In General 
  • The Alliance: Was essentially founded for the express purpose of being in an alliance with Nogi in order to increase his odds of winning the Annihilation Tournament. But as the story went on Kazuo and Ohma became more and more independent and, despite Nogi’s best efforts, more interested in fighting to win the tournament not out of a desire to win for his or Kazuo’s sake, but for Ohma’s honor as a fighter in his last few days of life.
  • Famed in Story: Started out as one of many nobody pawn corporations in the Annihilation Tournament that over the course of Ashura became more and more famous across the entire Kegan Association. With this status being achieved due to a combination of dumb luck and genuine bursts of honorable character at the right by Kazuo, and the incredible fighting ability courtesy of Ohma that allowed for the corporation to reach the finals. Come Omega, the corporation is a famous entity within the Kengan Association circles that blazed a trail for the new regime of the association that is admired and respected by many far more experienced and well established groups.
  • Impartial Purpose-Driven Faction: What they ended up becoming come Omega, as they don’t technically hold any membership in the association by this time and instead are a universal agent of it as a whole and don’t participate in the Kengan Matches directly anymore. With the corporation existing to register, evaluate, regulate and sometimes even train fighters for use in Kengan Matches one one-time, multi-part, and/or Corporate Affiliation level contracts. With this system existing so that other fighters can be called upon to replace fighters who may be too injured to fight for their employer without the risk of death, which was a real possibility when the politics of the association often interfered with their safety and mortality. Overall they act as a major support system for fighters, contrasting heavily to what once a incredibly unregulated fighter safety care culture in the Association as a whole.
  • Thou Shalt Not Kill: Exist as an organization in Omega to help enforce and make this a reality in the Kengan Association.
  • Wild Card: Next to no one in the tournament could have expected how well Kazuo and Ohma would end up doing in the Annihilation Tournament, but considering that they outfought and outfoxed the Kure Clan’s strongest member and patriarch (respectively), took down several famous fighters (Cosmo and Wakatsuki), defied an industry titan like Nogi and ended up in the finals against the man who defeated the undefeated Fang of Metsudo. Among many other insane feats, to say they were an wild unknown in the event is a understatement.


    Kazuo Yamashita

Voiced by: Yuichi Nagashima (Japanese), Keith Silverstein (English), Carlos Segundo (Latin American Spanish)

Age: 56

A beleaguered and passive salary-man. He encounters Ohma in the streets of Tokyo one night, and later becomes his "handler" of sorts, looking after him in-between Kengan bouts.

While he is extremely skittish and put-upon, experiencing the unbelievable sights of the Kengan Association battles awakens something within him. With him and Ohma setting out on their own (By direction and sponsorship of Nogi) to form the Yamashita Trading Corporation in preparation for the Annihilation Tournament, with Kazuo as the CEO and founder.

  • Ascended Fanboy:
    • In a unique sense. He witnesses Ohma in a back alley brawl and is so impressed with the young fighter that he feels an overwhelming wave of respect and awe. He even compares his sense of pride when watching Ohma fight to the love a father has for his son. The next day he gets assigned to be his new idol's assistant and manager, though from here forward he feels more fear and anxiety than fanaticism.
    • In another fashion, he mentions that he's an avid fan of combat sports, enough to recognize a famous kickboxer out of context. Now he has an active role and front-row seat for the most brutal martial arts competition in the world.
  • Awesomeness by Analysis: He's not as silly as he seems. He's incredibly good at gauging an individual's strength. As seen in the "Preliminaries" Arc, where every fighter he perceived to win would win.
  • Becoming the Mask: Develops an undeserved reputation of being a terrifyingly smart and adept businessman in Ashura, when in reality he just happened to get as far as he did through a series of coincidences. By Omega, his management skills have started to catch up to his reputation.
  • Berserk Button: Not often, but he gets riled up whenever someone insults or puts themselves above Ohma.
    • Anyone who has ill intentions towards his sons. He flips his lid at Erioh when he threatens Kenzo's life.
  • Beware the Nice Ones: He may be a bumbling nice guy who would give the world to his friends, but even he won't tolerate any disrespect from those who are callous.
  • Butt-Monkey: Kazuo can't get a break. He has been, all intents and purposes, dragged in the Kengan tournament by Nogi's schemes, and unable to back out of it. Not only because Nogi set it up in such a way to make sure that he can't, but even when he tries to say no or make a decision on his own, Ohma butts in and makes it for him. And it's always the exact opposite of what Kazuo wants.
  • Character Development: Kazuo was just a meek and lousy Salary Man with an estranged relationship with his wife and two sons. His passiveness towards everything meant that he was pushed around for most of his life. Then he met Ohma Tokita, who helped Kazuo learn how to stand up for himself even going so far as to refuse Nogi's offer of giving up the tournament because he had come to respect Ohma's skill and bravery.
  • Combat Commentator: A frequent participator, though mostly to himself. While he does typically react in emotional shock to the over-the-top fights, it also shows off how observant he is from how he's able to explain even subtle actions to himself.
  • Crouching Moron, Hidden Badass: He looks like (and for the most part is) your average salaryman, but at least by Omega he's hiding an aura strong enough to make Ryuki cautious of him.
  • Did You Just Flip Off Cthulhu?: Records Erioh Kure threatening to kill him and then tells him off to his face to ensure his son's safety. Erioh is so impressed by Kazuo's sheer balls that he favorably compares him to Metsudo.
  • Dirty Old Man: Not prevalent, but it happens. Also, who can blame him when you find out his wife had abandoned him and his sons?
    • And let's not forget how he has had dreams where the majority of the cast are Attractive Bent-Gender, along with a hotspring scene.
  • Entertainingly Wrong: Everyone else about him. Those of the Kengan Association constantly make the wrong conclusion that he's a force to be reckoned in terms of confidence, intelligence and skill from even simple casual actions on his part. Everyone who's hung around him enough knows better, but even they can make too many wrong assumptions at times.
  • Face Fault: The main offender of the series. It wouldn't be a stretch to say that the man has at least one every chapter he appears.
  • Fatal Flaw: Surprisingly it's his kindness and his lack of confidence which allow others to walk over him and take advantage of his weak personality. Though through spending a lot of time with Ohma, he is shown to grow a pair and starts standing up for himself.
  • Good Parents: While his bumbling and lack of confidence results in both his kids falling in with bad crowds, he still cares for them immensely and gets back on speaking terms with both Yasuo and Kenzo with just a bit of help from Ohma.
  • Hidden Depths: His incredible eyesight turns out to be much more than a fluke. The relationships he has with his estranged sons is also much closer than it initially appears to be.
  • Knowledge Broker: Becomes this in Omega, running a database of fighters registered to the Kengan Association and hiring out freelancers to corporations who need them.
  • Legendary in the Sequel: Come Omega, people are lining up to give their business cards. He's a very respected figure.
  • Like a Son to Me: His relationship to Ohma steadily evolves into this, lampshaded when he thinks to himself that Ohma is young enough to be his son and is one of the key reasons why he thought about dropping out of the tournament.
  • Locked Out of the Loop: Come Omega, it is revealed that Ohma survived the end of Ashura and was in fact just in a coma when Kazuo found him after the Tournament was over and later managed to recover over in the Kure Village for the past two years after getting a heart transplant performed by Dr. Hanafusa with a mysterious cloned heart that was left for Ohma by what is heavily hinted to be The Worm. The ‘Loop’ Kazuo was locked out of was the fact no one told him for two years. To make matters worse a surprisingly high number of people he works with knew, ranging from basically the entire Kure Clan, Nogi, Metsudo, Retsudo, Hanafusa and his nurse. Ohma and others justify this by claiming it was necessary for Ohma to recover in secrecy to protect him from The Worm (which was a good call considering they tried to kidnap him the last time he was weakened during the Tournament). Even with that in mind Kazuo was very upset, going as far as to yell at Ohma about it. (though Kazuo did forgive him pretty quickly before that point and was more happy to see him then angry) As Ohma sincerely apologizes about it and made up for it by him and Raian joining the Kengan Association as fighters for the showdown against Purgatory.
  • Mistaken for Badass: People seem to think he's much more intimidating and competent than he is. By sheer accident he manages to dodge sneak attacks from several fighters (while remaining completely unaware of their existence), while his politeness and passiveness is mistaken for Obfuscating Stupidity by people who are convinced he's a Machiavellian manipulator. Throughout the story, his actual abilities reveal that he is an incredible analyst.
  • Naïve Newcomer: Kazuo is out of his depth when it comes to the politics of the Kengan Association. He's able to read what's happening in the matches pretty well. Still, his misunderstanding of business lingo when making a bet with Urita nearly landed him in even more debt than he already was.
  • Nice Guy: Kazuo is a very polite and meek person. He's often respectful to anyone he comes across and is very generous to even his company rivals.
  • My Greatest Failure: He believes that his passive attitude is responsible for his family's dissolve; his wife leaving him, his youngest son Yasuo becoming a delinquent and his eldest son Kenzo becoming a shut-in, despite Kenzo being the underground head of a corporation. This comes to a head with Kenzo before Ohma's fight with Raian. Kenzo's increasingly bizarre, asocial and disturbing habits drove Kazuo away and they haven't even seen each other for years. Kazuo believes that his inability as a parent to reach out to his son eventually led to the Kure attempting to assassinate Kenzo for deceiving them.
  • Obfuscating Stupidity: A trait he developed in Kengan Omega to hide his increased perceptiveness. He realized that Ryuki was about to finish off Kokuro after defeating him, so he cheerfully made him a fighter to stop Ryuki and save Kokuro's life.
  • Papa Wolf: He threatens to expose Erioh, the patriarch of a family full of assassins who can kill Kazuo as easily as squishing an ant, for attempting to kill his son Kenzo showing even he dares to protect his family's life. Also he has a soft spot for Ohma as well who he often worries about constantly.
  • Parental Neglect: A sympathetic version. It's not so much as though Kazuo's a terrible parent, as it is that his passive personality keeps him from acting as a father to straighten out his sons. His failure in keeping his family in line has caused him no shortage of grief, especially in Kenzo's case.
  • Perma-Stubble: It adds to his disheveled look.
  • Red Baron: Parodied with a series of silly nicknames he claims he used to go by in his youth, such as "Kazzy the Raging Rook," "Kazzy the Swift," "Kazzy the Cold-Sensitive," and so on.
  • Salary Man: He starts as one at the start of the series, and then he was pulled into the Kengan Association full time. He quits his job to properly create Yamashita Trading Co in the epilogue of Ashura.
  • Seen It All: In Kengan Omega, he comes off as this, adapting well to his role in the Kengan Association and not showing the same Oh, Crap! reactions that he did in Ashura. He has a massive Oh, Crap! when Nogi puts him in charge of creating a team for a tournament between the Kengan Association and its main rival Purgatory, where the winner would merge with and take over the other association.
  • Super Senses: He's shown to have incredible eyesight that helps him analyze the situations he finds either himself or Ohma in. This is because he inherited it from his ancestor, Ichinoshin Yamashita, who was a fighter in the early days of the Kengan Matches.


    Ohma Tokita 

The Asura
"So? You wanna fight, too?"

Voiced by: Tatsuhisa Suzuki (Japanese), Kaiji Tang (English), Erik Kimerer (English; Young), Alfredo Gabriel Basurto (Latin American Spanish), Diego Becerril (Latin American Spanish; Young)

Age: Late 20s

The protagonist of Ashura. At the beginning of the series, Ohma wanders the streets of Tokyo, fighting whoever challenges him. He's eventually picked up by the Nogi Group as their representative in the Kengan Association, and he begins to bond with Kazuo as a result and later becoming his representative fighter for the newly founded Yamashita Trading Co.

Ohma uses the "Niko Style", a relatively unique martial art that utilizes his body control to it's maximum while having a variety of useful techniques to use in dire situations. There are four Katas of techniques at his disposal: Water, Flame, Redirection and Adamantine. Water Katas consist of grappling and soft locks, Flame Katas relies on dexterity and speed, Redirection Katas is for diverting and controlling the flow of power and Adamantine Katas enhances his attacks as well as his defensive capabilities.

Ohma also possesses the ability to take out an "advance" on his life to enhance his physical capabilities by accelerating his velocity, thus allowing him to increase his damage output, along with his ferocity, by overclocking his heart at the cost of reducing his life span.

While he was presumed dead at the end of Ashura, he was saved by a heart transplant, and he spent the two-year gap in the Kure Village. He was later chosen as a fighter for the Purgatory showoff in Omega.

  • A Good Way to Die: Strongly invoked when finally succumbing to his wounds and over usage of the "Advance". Ohma dies watching the sunset into the night, at peace having been able to fight many strong opponents and avenging his Master's death in his way. Subverted In Omega as it was revealed he didn’t die, simply slipped into a near death coma which he was saved from by a heart transplant, with him alive and well after that point, having he spent the two-year gap in the Kure Village to hide from The Worm while he recovered from the surgery, only returning to the main stage of the series once Kazuo is targeted by The Worm himself due to his attempts to discover Ohma’s potential relationship to Ryuki.
  • Adaptational Angst Upgrade: Downplayed as Ohma doesn't let it interfere with his life, but in the Netflix adaptation his reasons for relying on the Advance over the Niko Style was due to misplaced anger and grief about how the Niko Style didn't save Niko from getting killed. He gets over it during his fight with Raian.
  • Adaptational Badass: Unlike in the manga, Ohma manages to not fall into a brief coma after his fight with Raian. Being healthy enough to wander off and wanting to find something to eat.
  • Amnesiac Hero: A strange case, he remembers most of his life just fine. However, a lot of his techniques seem to have been lost, a side effect of using the "Advance", which causes memory loss and hallucinations. Hell, he didn't even know what the Advance's real name was. His match with Raian helps him regain them.
  • Animal Motif: Ohma's often associated with tigers. Such as being named one of the Tiger's Vessel due to the Advance being bestowed upon him and heightening his aggression thus allowing his spirit to be possessed by the tiger itself. Even his walkout theme in the anime adaptation is called The Animal Fighter. Along with the usage of the Niko Style's translation being "Two Tigers Style".
  • Arch-Enemy: Setsuna Kiryu. The man who killed Niko, Genzan Taira was initially this for him and Ohma entered the Kengan matches in hopes of finding and killing him. Then Setsuna, Genzan's pupil, informed him that he had already killed him to goad Ohma into fighting him, and it worked. Afterwards, the very mention of Setsuna's name makes Ohma's blood boil, and he didn't care about the eventual possibility of his death from the Advance as long as he could survive long enough to kill him. By the time they do fight, Ohma had lost his hatred and animosity towards him after regaining his memories. By then, Ohma only feels pity for Kiryu and seeks to save him from his madness.
  • Arrogant Kung-Fu Guy: Ohma is extremely arrogant and provokes all of his opponents, although it isn't unprovoked as many of his opponents are of the same braggart clause. Despite this, Ohma is often a lot less aggressive to those who support him, especially his manager. As the story develops, Ohma loses a lot of his edge, and he becomes more respectful towards his opponents. This may have something to do with him knowing he's going to die, and being unafraid to do so.
  • Awesome, but Impractical: The Advance gives Ohma a massive boost in speed that allows him to overwhelm his opponents. However, its main effectiveness is being able to crush fighters who are as strong as or weaker than Ohma, like Inaba, but the way it works causes his techniques to lack precision and rendering it wild. In the end, the Advance can be used fighting against opponents who are stronger such as Sekibayashi and Raian. And that's not even getting into the fact that it was slowly killing him. By the last round of the tournament, he's refined his control of it to utilize it at a lower output, giving himself a moderate physical boost without the downsides. Unfortunately, he accumulated far too much damage to make a dent against Gensai.
  • Badass Baritone: Ohma has a deep voice in the English, Japanese, and Latin American dubs.
  • Badass Boast: From him to the Fang of Metsudo, and he makes good on it.
    Ohma: The winner of the left block... is gonna be me.
  • Berserk Button: Never speak of the name of his late master Niko Tokita in vain, especially right in front of him. Part of the reason why he's so excited for the Annihilation Tournament is that he wants to deal with the killer himself as he feels they disrespected his honor for years.
  • The Berserker: When Ohma uses the Advance/Possessing Spirit, his blood practically boils for battle as his skin turns red and his aggression becomes like that of a wild animal, as his attacks are considered to be extremely damaging, but lack precision. This happens all while he's sporting a savage grin on his face, being taken over by his love for fighting. When maximizing it to it's fullest potential, Ohma gains a truly terrfying appearance as his skin turns dark red and his eyes darkening being fully possessed by the raging spirit within him. This in turn increases his ferociousness even further, as he's consumed by a sudden thirst to kill whomever he's fighting, while his mental state also deterorates in this form due to the Advance's side effects, leaving him in an animalistic state.
  • Big Eater: Ohma is shown in several parts of the manga to have a huge appetite for meat. When Kazuo visits his home, he sees that Ohma is feasting on a giant boar he hunted. In a crossover omake with How Heavy Are the Dumbbells You Lift?, he enters a food competition against the other Big Eater, Sakura Hibiki. The two of them end up eating all the meat, causing a draw. After the competition is over, Ohma reveals to Kazuo that he was so full that he could only eat three hamburgers when he went home.
  • Black Eyes of Crazy: Unlocking the full output of the Advance causes his eyes to darken, showing a striking resemblance to the Kure family's Removal.
  • Blood Knight: Ohma lives and breathes fighting, to the point where it is the only thing he likes to do, aside from eating. It so happens to be a trait he inherited from his childhood as the constant will to live sparked his love for fighting others. As an adult his main hobby is that he often challenges random street fighters in search of a good fight and even holds back most of the time when fighting so he can take the time to savor and enjoy it. Consequently, he gets very excited at the thought of fighting someone who can push him to use every ounce of his full strength. Even when he fights with a literal superhuman in the form of Wakatsuki it's clear that he's still enjoying himself immensely despite having one-and-a-half of a foot in the grave and being covered in his blood and gore.
  • Blood from the Mouth: He vomits blood from using Advance, revealing the severe internal damage it causes.
  • Body Horror: Ohma goes through a lot of damage in the Annihilation Tournament. By the time he reaches the finals, his limbs have also been battered red from having to tank hits from Wakatsuki.
  • Boring, but Practical: The Ultimate Techniques of the Niko Style. They aren't the strongest techniques, nor are they all that flashy, but instead these techniques are meant to aid Ohma in taking down his opponents even if he's not at a physical peak. He was forced to as a consequence of abusing the Advance.
  • Bratty Half-Pint: As a child he was very stubborn and almost always mouthed off towards his master/adoptive father Niko.
  • Cast from Lifespan: His "Advance" technique boosts his physical attributes considerably at the cost of doing massive internal damage.
  • Catchphrase: "So? You wanna fight to?"
  • Catch and Return: The main premises of the Niko Style's secret technique Demonsbane is to catch your opponent's attack to where you redirect their flow of power to then return their attack combining both the user's power along with the opponent's.
  • Celibate Hero: Ohma is able recognize the concept of relationships and attraction since he tends to tease Kaede at times. Otherwise, his reaction to women practically throwing themselves at him is either complete and utter indifference or exasperation (or confused panic, if that woman is Karla).
  • Character Development: His brief coma and pushing himself to the brink against Raian awakens his lost memories, causing him to become much more composed and mature for the last few days of his life. His friends at that point think he's mellowed out, in reality, Ohma's simply satisfied with how far he's come, that he's avenged his master's death in his way and does not fear death.
  • Chick Magnet: A flock of women started crowding him at a casino (he says he had no idea why). Karla fell for him at first sight, Shion Soryuin finds him attractive even when he's manhandling her, Mihono Suoh slips him her room number and Yoshiko Togawa starts crushing on him based on an complete misunderstanding from ''one reply'' to her.
  • Clipped-Wing Angel: His Advance is ultimately this. The technique allows him to briefly overpower or at least put him on equal footing with opponents who are stronger and sturdier than him. However, due to the mechanics of how the technique works, it pushes the body way beyond its normal limits. Moreover, it causes fatal internal damage to Ohma over time.
  • Combat Pragmatist: Ohma is perfectly fine with kicking his opponents in the family jewels.
  • The Comically Serious:
    • Ohma is The Stoic outside of fighting. By then his deadpan expressions lend to most of the humor involving him.
    • Besides his initial shock from his first encounter with Karla, his expression as he's running from her is that of utter stoicism.
  • Counter-Attack: The secret technique of the Niko Style known as Demonsbane.
  • Crippling Overspecialization: During his dream battle with Tokita Niko, the ghost Niko informs him that he focuses way too much on the redirection and flame katas of the Niko Style, at the expense of learning all of the techniques completely. He makes better use of all four katas over the course of the tournament.
  • Dark and Troubled Past: Ohma grew up an unnamed orphan in a lawless, fictional district of Japan until he was taken in by his master.
  • Decoy Protagonist: To the franchise as a whole. At the start of Ashura, the story is tightly focused on him and Kazuo, before gradually expanding into the Annihilation Tournament, where it becomes something of an ensemble piece. Nonetheless, he and Kazuo still get the most focus and remain the protagonists, and Ohma is involved in many plotlines, but he's not the center of them. In the end, after concluding his character arc and doing his best to save Kiryu from his madness, he dies, and the plot continues without him in Omega. However, in chapter 50 of Omega he returns to save Kazuo along with Raian Kure.
  • Dented Iron: Right before his final match against Kuroki Gensai, Ohma goes over all of the accumulated damage he's received in the series so far, even as far back as the gouges Rihito made into his arm during their fight.
  • Determinator: Ohma will never give up in a fight even if he's about to die. Even as a child he nearly gives up his life to beat a the Yakuza bodyguard Ando by tackling him out a window which almost got him killed. As an adult nearly every one of his fights have him taking brutal amounts of damage during the Kengan matches as he's often on the verge of death, but will to continue fighting.
  • Defeating the Undefeatable: While not quite as impressive as Gensai defeating Agito, practically nobody expected the relative newcomer Ohma to defeat Wakatsuki, considered by many to be the favorite in actually beating Agito.
  • Difficult, but Awesome: Implied with the Niko Style as a whole as it takes a variety of skillful usages through which can only be accomplished through hellish training and fully mastering each individual Kata's unique qualities. Luckily Ohma displays being a master of nearly all of the Katas which grants him easier usage to their techniques, but he mostly relies on the Redirection and Flame Katas, with his weaker ones being the Water and Adamantine Katas though he is shown to be just as proficient when the situation calls for it.
    • Firstly, the Redirection Kata requires delicate control of the flow of power and it’s implied that it takes somewhat longer to master than the other three in order to use it properly.
    • Secondly, the Flame Kata requires the user to constantly train their speed and agility as well as mastery over their center of gravity to let them move, thus letting them move at incredibly fast movements. Failure to master this leads to their positioning or speed decreasing severly.
    • Thirdly, the Water Kata requires the user to have complete control over the bodies’ fluidity and flexibility. This would allow the user to perform grappling movements at a much easier rate than if the body were stiff and rigid to where their submission holds wouldn't be as efficient to use properly. Thus the user would have to train their flexibility and learn how to use their body into fluid motions.
    • Finally, the Adamantine Kata requires precise control over the user's muscles as well as performing hard and compact attacks. If the user doesn't have full control of their muscles and cannot calculate the timing to clench their body, the usage of it's simple techniques would be considered imperfect and useless.
  • Elemental Powers: The four katas of the Niko Style are themed after the classical elements.
  • Explosive Overclocking: Activating the Advance causes Ohma to reveal an explosive aura around him.
  • Face Death with Dignity: After everything he had put himself through in the Annihilation Tournament, Ohma is satisfied that he fulfilled his goals and finally honoring his old master. He peacefully entered a long slumber while witnessing the sunset.
  • Fire-Forged Friends: Both he and Raian appear to be on much friendlier terms after the events of the Annihilation Tournament.
  • Full-Name Basis:
    • Ohma is illiterate and so he is shown to use people's full name in katakana, assuming he knows or remembers their name at all. As an example, he addresses Kanoh Agito (加納 アギト) as "Kanohagito" (カノハギト).
    • By Omega, he has mostly grown out of this. However, he still calls Kazuo by his full name out of habit.
  • Groin Attack: To Iwan Karaev, and then Raian. In the latter's case, he admitted it hurt more than anything else Ohma threw at him.
  • Guttural Growler: Noticeably, when he activates the Advance, his voice changes to a more raspy and bestial tone.
  • The Hero Dies: Not only does he die, but he does so without winning the tournament, as Gensai thoroughly crushes him even with repeated use of the Advance. Subverted on Chapter 50 of Kengan Omega, where he comes back alive and well.
  • Heroic Build: Ohma has a very well built physique and only increases his stature with the Advance. Even when he was younger he was very muscular for his age with notably built biceps and abs.
  • Honor Before Reason:
    • He squashes a bet Kazuo won against Urita for Ohma's match against Inabanote , shunning Urita for making such a deal behind his and Inaba's backs and goes as far as to state that Kazuo shares his opinion (he doesn't).
      Kazuo: ("Internally") WHAT MADE YOU COME TO THAT CONCLUSION!?
    • Had Ohma pulled out from the Tournament early, his chances of surviving death and still being alive would have drastically improved. It's only through Xia Ji's intervention by leaving Hajime a spare, cloned heart that Ohma even lived.
  • Hot-Blooded: Ohma usually has a dull personality where he's oblivious to mostly everything around him. However, when he gets a chance to fight, he becomes exceptionally more excited at the opportunity to go toe-to-toe with a strong opponent who can give him a good challenge. He also expresses a more wild and erratic excitement when he uses the Advance, which leaves him with an enormous grin on his face and making him act more wildly than usual. He's also quick to anger at times when he's provoked as he'll act more rashly out of instinct as he has trouble controlling himself when something bothers him and is quick to settle his matters with violence. Especially as a child when he was very tempermental and was almost always acting out in anger.
  • How Much More Can He Take?: After his fight with Raian, he's more or less going down a perpetual spiral of this. Wakatsuki brutalizes his limbs even further, and by the time he reaches the finals, Ohma needed to use the Redirection Kata's ultimate technique to be able to stand up straight and take a stance.
    Gensai Kuroki: Your fists have no power behind them. So you have no strength left within you. For shame. I wish I could have fought you while you were still healthy.
  • Hulking Out: When the use of Advance is in place Ohma's vascularity is increased, making him appear to be more muscular than normal.
  • Implacable Man: In many of Ohma's fights he often acquires a lot of injuries like broken bones, cuts, bruises and even internal damage. But despite this, Ohma will continue to fight on, with no fear of dying. Even in his past he was known to take on a severe amount of damage and continued to relentlessly pursue his victory.
  • Jack-of-All-Stats: Ohma is perhaps one of the best examples of being a very well-rounded fighter due to learning the ways of the Niko Style which functions well for him. He's shown to not be the strongest, fastest, most durable, or anything else of the sort, but he's definitely shown to be a very skillful martial artist even when he's not at peak performance. Whereas other fighting styles in the series mainly focus on one attribute or a specific form of fighting (or both), Ohma's martial art focuses on functionality to aid him when the situation calls for it. Even then his movements and attacks don't belong to any form either since the Niko Style only focused on body functions and versatility rather than having a specific attribute.
  • Jerk with a Heart of Gold: In the beginning of Ashura, Ohma has a serious lack of tact and is quick to using violence to solve his problems. However, his friendship with Kazuo is genuine, and he has nothing but respect and faith in him. Ohma is also not inherently callous towards others; he will deliberately go out of his way to keep those close to him safe from harm. Noticeably, he always chooses to run from Karla rather than attempt any other crueler ways to shun her advances. Also, while he was indeed rude to his master Niko, he did care enough about him to go on a ten-year search of revenge for his killer.
  • Knife Nut: He carried two knives when he lived on the border Tokita Ward which he often used to cut up his opponents who tried to kill him.
  • Legendary in the Sequel: He is considered a "legend-class fighter" in the Kengan Association after the Tournament. It is enough that when Ryuki makes his debut and is mistaken for Ohma, everyone collectively shits their pants at the thought of seeing him fight.
  • Lightning Bruiser: Ohma hits hard and moves even faster, the guy can even take a beating from professional wrestler Jun Sekibayashi and still get back up to use his Dangerous Forbidden Technique to finish the job.
  • Made of Iron: Even without Indestructible, Ohma is far more durable than the average human being, though even that has his limits, especially going up against the likes of Raian and Wakatsuki.
  • Mangst: Ohma does not like talking about his issues and he usually isolates himself if he's ever feeling distressed or uses it as fuel to fight.
  • Meaningful Name:
    • The name Ohma Tokita can be interpreted as "Witching Hour", which would be more like "Ouma ga toki". Kazuo remarks that even Ohma's name is strong, and even before the Kengan Matches, Ohma wandered late at night, looking for a challenge.
    • His epithet, the Asura, compares him to being a vicious fighting demon that derives from an Association filled with vicious fighters. In that regard, Ohma became a demon among demons.
    • The Advance also has this as well due to Ohma "taking out an advance" on the years of his life, as well as it being a boost in physical abilities and increasing his power immensely. The Netflix adaptation calls them "Loans" instead though it still has a similar meaning. Its real name, the Possessing Spirit, is also this as whomever uses it are now known as one of the Tiger's Vessels, as the ability increases the user's ferocity by allowing their spirit to become possessed by the tiger.
  • Messy Hair: Some have compared Ohma's hair to a mass of seaweed on his head. Rihito once indirectly called him "Kelp-thulu, the dark haired one".
  • No Social Skills: Ohma can be cold at times, but it becomes clear that his rudeness comes from him really not knowing any better. He fails to understand that being covered in boar's blood would freak Kazuo out, or that stripping down naked right in front other people to go for a swim is obscene.
  • No-Holds-Barred Beatdown: Ohma more often is on the receiving end of this by multiple opponents who outclass him but he can dish out a beating towards others as well.
  • Not So Stoic:
    • He normally has zero reaction to anything around him outside of fighting. That said, out of everyone else who was around to see it, he is the most caught off guard by Karla's... open desire have his children.
    • Even Ohma can't help but be surprised by the sight of Takayuki Chiba seemingly changing size in a cloak.
  • Pint-Sized Powerhouse: As a child he was capable of injuring several Yakuza members and damn near killing all of them until he was beaten down by Ando and even then he was strong enough to force the bodyguard out the window. However this is subverted when he becomes an adult as he's not only tall but incredibly muscular as well. Though he tends to fight opponents that are much larger in stature in terms of height and weight.
  • Rage Breaking Point: Throughout the tournament, Ohma has remained relatively calm. But when Kazuo's son Kenzo's life is on the line, along with his internal struggles, he pushes his body to the limit by overusing the output of the Advance in his fight with Raian to where he is overcome with bloodlust and is hell-bent on killing him.
  • Rapid-Fire Fisticuffs: Swimming Swallow, a combination of the Redirection and Water Katas that allow him to throw a flurry of punches that come at unpredictable angles.
  • Reading Lips: By Omega he learned to do this during his time with the Kure Clan.
  • Red Baron: The Asura/Ashura.
  • Red Oni, Blue Oni: Zigzagged between him and Kazuo. While he's normally the reserved Blue against Kazuo's highly expressive red, it switches when Ohma's fighting. In that case, Ohma becomes the Red Oni, in some cases literally redder through use of the Advance. Kazuo also becoming the more rational blue, albeit still very expressive.
  • Revenge: His main goal of entering the Kengan matches as well as the tournament was to avenge the death of his master Niko Tokita. He later drops this desire. He instead finds pity for Kiryu, the one who helped kill Niko in the first place.
  • Screw This, I'm Outta Here!: Whenever he's dealing with Karla and her antics, his usual course of action is to leg it.
  • Slasher Smile: He does this a lot during challenging fights. It's damn near terrifying when he's in this state.
  • Spell My Name with an "S": Ohma's moniker can either be spelled as "Ashura", the official translation, or "Asura", the more accurate translation.
  • The Stoic: Give him a fight or even talk to him about fighting and he'll be grinning like a kid at a candy store. Otherwise good luck trying to get him to react to anything.
  • Strong and Skilled: Ohma is an extremely skilled martial artist who's been fighting more or less from the moment he could stand up. He augmented his skills with the instincts from his rough childhood as well as being taught the Niko Style, one of the most unique and versatile ways of fighting. While he's not even close to being the physically strongest fighter in the series, he can still crumble boulders and punch holes in sheer cliff walls. And this is without the Advance, which enhances his attack power even further with the amount of momentum he gathers by increasing his acceleration in his attacks to gain a more rotational damage output.
  • Super Mode: The Advance/"Possessing Spirit". It is an ability forced onto him by the "Real" Niko made to combat the Kure Clan's Removal. By overclocking his heart to beat several times faster than normal, Ohma's able to move at near-superhuman speeds, the momentum of which also means that his attacks become significantly stronger. Unfortunately, there are some caveats to the technique.Initially, Ohma wasn't able to control how fast he overclocks his heart. Because of how it works, the massively increased blood flow disorientates his brain and trying to use the Adamantine Katas which require full muscle control, is near impossible to use. While he does figure out how to optimize the Advance in a way that he doesn't compromise his actual techniques in time for the finals, he's more or less dead on his feet.
  • Super Not-Drowning Skills: He can shadow-box underwater for eight minutes at a time, repeatedly.
  • Super Reflexes
    • Using the Advance causes him to have great eyesight and can see an opponent's movements much more clearly.
    • Even without it, Ohma's usual reflexes help him greatly with his Redirection Kata.
  • Super Senses: Ohma is said to have a great detection of danger due to him living in the "Inside", where he was constantly on the move from people trying to kill him.
  • Super Strength:
    • Ohma hits hard enough on his own, but the Adamantine Kata's striking techniques also enhance it through precise muscle control.
    • When using the Advance, it less increases his strength but the immense velocity he produces allows him to maximize his damage output. Wakatsuki states it to be his "rotational strength" as he can punch through hard exteriors and can also easily crush an opponent's bones with just a few hits in this state.
  • Super Speed:
    • When using the Advance his main ability is accelerating at superhuman levels and mostly uses this advantage to attack head-on.
    • With his Flame Kata, he can dance around or outmaneuver anyone with his quick movements.
  • Super Toughness: He can harden his body with the Adamantine Kata technique "Indestructible" which makes his body as tough as steel.
  • Surpassed the Teacher: Zigzagged. Setsuna Kiryu believes that Ohma has surpassed Niko during their final fight, but his worsening state of mind and obsession with Ohma doesn't make him an impartial judge. In the finals, Gensai Kuroki, a far better judge of character than Kiryu, acknowledges that Ohma has surpassed Niko when it comes to using the Redirection Kata, implying that Niko was better with the other katas.
  • Time to Unlock More True Potential: When he challenges Agito after the latter's match, the Fang shows no interest and matter-a-factly states that he is weak, is no match for him, Wakatsuki or Ohma's next opponent Raian, and knocks him out with a kick. Afterwards, Ohma spends his time extensively training with one of Metsudo's bodyguards for his next match and unlocking more techniques of the Niko Style he had once forgotten. His boost in strength doesn't go unnoticed when he (at first) gives a beatdown Raian at the start of the match.
  • Took a Level in Kindness: In the final days of the tournament, Ohma becomes more relaxed, open and less aggressive, to the point where you could even call him a Nice Guy. He also mends bridges with people he had more difficulty with socially at the start; casually speaking with Hatsumi and helping train him for his fight with Agito, despite his initial hatred towards him. He's also capable of speaking to Karla without any trouble, where before he would immediately run and hide from her on sight. Even he lampshades this.
  • Trademark Favorite Food: Meat.
  • Troubling Unchildlike Behavior: Instead of being an immature rambunctious child Ohma moreso had to fight in order to survive the harsh reality of the Inside where laws don't exist and during this time he was incredibly dangerous and was not a child you wanted to pick a fight with. Especially when he gave the already bloodthirsty and ferocious looking bodyguard Ando a very terrifying look that scared him half to death when falling out of a window.
  • Turns Red: When using the Advance.
  • Unskilled, but Strong: Normally, Ohma is far from being unskilled in fact he is one of the most adaptable and skillful fighters to exist, but when he uses the Advance, he becomes incredibly powerful but lacks the precision needed to make his attacks hurt where it counts. Instead, he relies on randomly attacking areas where he can deal a lot of damage, just not as efficiently and are severly untamed in that regard.
  • Walking Spoiler: It's hard to discuss Omega without the matter of his death at the end of Ashura. Or the fact that he comes back anyway.
  • Weak, but Skilled: By the time of the last two rounds of the tournament, his fatigue and accumulated damage has reduced him to this. He's more dangerous than ever thanks to fully regaining his memories, but is running on fumes, requiring him to get very creative to compensate for his lack of strength. This also seems to be his go to method when fighting as he mostly relied on his skill to savor the fight until he decides to release his true strength when the battle reaches it's climax.
  • Wild Child: Spent the first 10 years or so of his life in the lawless, crime-filled Inside, essentially becoming a wild animal who protected his territory with violence. He mellows out after training with Niko, but even by the time of Ashura he's illiterate, doesn't know anything about the cultural traditions of the "Outside," and doesn't even understand how names work.
  • The Worf Barrage: The Water Kata's Swimming Swallow move is a rush of punches thrown while swaying the upper body around, and due to its unpredictable angles of attacks is a tough move to defend against. Naturally, this means that everyone Ohma (or Setsuna) uses it on after its debut manages to defend against it to show how skilled they are.
  • Worthy Opponent: It's the only way Ohma remembers his opponent's name. Otherwise, if they didn't put up a strong enough fight he often forgets their name the minute the fight ends.
  • Yin-Yang Bomb: It is said that the Advance is completely incompatible with the Niko Style but Ohma tends to defy that logic as he is able to use both the Flame and Redirection Katas. As both Katas are more adept to the Advance's nature by allowing the user to increase their physical movement and unleashing attacks at a much faster rate by using it's rotational motion to accumulate torque. He later learns to regulate the output of the Advance to slightly improve his physical performance while still able to use the Niko Style at its full capacity utilizing all four Katas. This including the Adamantine which was supposedly impossible to use simultaneously with the Advance.
  • Your Days Are Numbered: Overuse of his "Advance" technique have damaged Ohma's heart to the point that after the second round of the tournament, he had only days to live. Until he gets a new heart, at least.

    Koga Narushima

Age: 20

One of the two main protagonists of Omega. A young delinquent and dojo crusher with a history with Ohma.

  • Arrogant Kung-Fu Guy: He starts like this, having a reputation of drifting between different martial arts schools and starting fights, insulting the school and leaving as soon as he's tired of them. After learning how out of depth he is in the world of underground fighting, he mostly loses this, but still has a bad habit of getting overconfident at times, which usually ends in him getting his ass kicked.
  • Awesome by Analysis: Koga's incredibly strong kinetic vision and wide experience with various martial arts allows him to quickly identify and break down a fighter's style after only seeing a few moves, on a level that can be compared to Kazuo. This only gets more pronounced after his Training from Hell, since he can now keep track of fighters' more subtle movements and muscle tension to pick up feints and potential gaps.
  • Because You Were Nice to Me: Before working for Kazuo, Koga was shunned by others for constantly getting into fights. However, Kazuo treats him with friendliness and respect despite his love for fighting to the point where he abandons his decision to join Purgatory after Kazuo told him he believed he could get strong enough to participate in the fight against Purgatory.
  • Berserk Button: Being called/feeling weak and losing fights. He goes from calm and cordial to violently angry when either happens. His entire motivation for finding Ohma is because he was both beaten and called weak 3 years ago.
  • Blood Knight: Downplayed and subverted. His initial motivations for becoming a Kengan fighter was to participate in life-and-death battles where he could use any means to defeat his opponents. However, Koga draws the line when it comes to killing, and was horrified when he saw the mangled corpse of a Worm member next to Ryuki.
  • Boisterous Weakling: Downplayed, as he is more than capable of crushing whole dojos, and would probably do very well in public martial arts. However, compared to the standard fighter of the Kengan Association, he wouldn't stand a chance. Only after months of teaching under other Kengan fighters and other incredible fighters does Koga become able to beat an active fighter.
  • Book Dumb: He's not stupid, at least when it comes to fighting, but when he was told that Kushida was working in Egypt, he had no idea where that was.
  • Boring, but Practical:
    • After training with his uncle Joji, he develops a Finishing Move. It's a crescent kick to the liver. Compared to every other fighter so far, it seems very average, but he can do it again and again without any strain and can drop a 2-metre tall opponent with it.
    • In fact, he is developing other finishing moves so he's not just reliant on one. So far he has the crescent kick to a level where it's reliable, and is developing a Brazilian Kick, a kick that feints low then goes to the head. When combined, his opponent is left guessing which one he is going to use.
  • Broken Pedestal: Ryuki has become this to Koga after he found out he killed someone and has no remorse, seeing it as no different than killing an insect. At this point, he understandably no longer wants anything to do with him.
    • Rebuilt Pedestal: Despite his alienation from Ryuki after discovering that he's a murderer, he was concerned about him once he heard of Akoya's murderous reputation. He goes as far as to rush to Ryuki's aid when Akoya brutalizes him out of concern for his friend. After the match is over, Koga learns that Ryuki held back from using a lethal technique on Akoya due to starting to develop a moral code about killing. Koga realizes that Ryuki isn't a malicious killer and decides to save him from becoming a murderer. Even after he's shocked that Ryuki killed Naidan by accident he is more concerned for his friend rather than being hostile to him.
  • Butt-Monkey: Nothing has gone right for him since he has gotten involved with the Yamashita Trading Co. He has been brushed off, had the shit beaten out of him, and made to look like a complete chump by other fighters at every opportunity. While he often brings it on himself by being cocky, he's humiliated so often that it's as if the universe itself has it out for him.
  • Chick Magnet: During a welcome home party celebrating Koga recovering from his injuries fighting off Worm members, he has Sayaka and Fusui all over him, commenting on his muscle growth, feeding and topping up his drink to help him with his injuries. Yasuo even Lampshades this.
  • Contrasting Sequel Main Character: Just about the only thing he shares with Ohma is a desire for strength. Not only does he start much weaker than Ohma did, but he's overall more of a normal and well-adjusted person. His hair is even the opposite color.
  • Determinator: Koga started as cocky fighter who was powerful enough to destroy dojos, but was nowhere near as strong as a Kengan fighter. However, a combination of being defeated and humiliated by various Kengan fighters, a desire to join the tournament against Purgatory, and the supportive training of his rivals caused him to work harder to become strong. He trains his endurance and strength with Sekibayashi in the morning, practices MMA and grappling with Kureishi and Cosmo, refines his Karate during the evenings with his uncle, and is having sparring matches with Kokuro Utsubuki. This regime includes a strict diet of protein and supplements, along with naps in-between. Even Jose Kanzaki, a powerful fighter of Purgatory, thinks Koga's training regimen is insane.
  • Gone Horribly Wrong: His grandfather sent him to learn Karate in the hope that he would learn morality. Instead it grew his longing for overwhelming violence and power and made him fall further into delinquency.
  • Hair-Trigger Temper: He becomes aggressive quickly over any perceived slight. This has been a problem since childhood, but throughout the series he's become less temperamental and more level-headed as he starts to improve his skills as a fighter to where he becomes a full on Nice Guy.
  • Incompletely Trained: It quickly becomes clear that this was the main thing holding him back. Because he'd always pick fights and leave once he felt a martial art had nothing left to offer him, he not only never mastered any of them, but lacks precision and balance on general. Once he's humbled, gets over his mental blocks and refines his actual skill, he massively improves as a fighter in leaps and bounds. He goes from being too weak for the Kengan matches to defeating a bottom-tier Kengan fighter without much difficulty in just a couple of months.
  • Jerk with a Heart of Gold:
    • He is an Arrogant Kung-Fu Guy with a Hair-Trigger Temper who goes around crushing dojos and beating people up but is otherwise relatively polite and good at heart. When he first visits Yamashita Trading Co. He mistakes Kazuo as the janitor, and gives him money to buy himself something nice, though he stole that money.
    • This is also clearly shown when he challenges Kokuro Utsubuki for the right to fight in the upcoming Kengan match. He calls him out in an alleyway, insults Kokuro's opponents, and proceeds to attack him. After the fight, Kokuro notes that there were all sorts of improvised weapons he could have used, but didn't, concluding that he is a good guy at heart.
  • Know-Nothing Know-It-All: Early on, he's a fine example of the Dunning-Kruger Effect in action. He doesn't know enough martial arts to understand how much of martial arts he doesn't know, and so he thinks his smattering of skills picked up from dojos makes him a Master of All.
  • Made of Iron: His ability to get the absolute shit kicked out of him and be back on his feet in short order over and over is insane. Even being literally riddled with knives while fighting off Worm Mooks doesn't stop Koga from knocking them all out before the Bodyguards show up to save him.
  • Out of Focus: After Ohma's return and the injuries he received from Worm, he is demoted to a minor character during the span of the Purgatory-Kengan tournament, though it's ultimately extremely unlikely that he would have ever managed to get strong enough to make that team in time anyway.
  • Reality Ensues:
    • Koga may have been undergoing Training from Hell and made leaps from where he was a few months ago, but a few months of hellish training does not give the years of real combat experience that other fighters have. When Koga is forced to fend off five armed attacker trying to kill him, while he fended them off well, he still ends up badly wounded and needed to be helped by Metsudo's Bodyguards.
    • Likewise, although Koga might be talented, six months of hellish training isn't enough to bring him up to the level required to participate in the Kengan-Purgatory Tournament, discounting the knife wounds he took.
  • Red Oni, Blue Oni: He's the hot-headed and aggressive Red Oni to Ryuki's calm and clueless Blue Oni.
  • Sore Loser: Big Time. Why does he have a grudge against Ohma? Because he was beaten in a fight and called weak three years ago. Why does he want to fight Ryuki in the Kengan Match? Because he was called weak. What is his reaction after being beaten by Kokuro, who called him an ambulance? Completely trash the hospital room. He grows out of it as he starts training with and befriending other Kengan fighters, even developing a friendship with Ryuki and Kokuro.
  • Super Senses: He has incredibly good vision, and reflexes fast enough to make use of it. He was the first fighter who had ever seen Kokuro's Stinger coming after it was launched. For comparison, when Ryuki fought Kokuro, he couldn't see it at all, and only got back up from it because he had already braced himself due to expecting a front kick. Kazuo had also compared it favorably to he and his ancestor's kinetic vision, potentially even rivalling it.
  • Took a Level in Kindness: At the beginning of the manga, Koga was a temperamental young man who disliked losing and looked down upon most fighters he meets. After being humiliated by Ryuki, Kokuro, and Himuro, he undergoes training with Sekibayashi, Adam Dudley, and Cosmo Imai, Joji Narushima, and even Ryuki himself. The combination of Kazuo and his trainers genuine kindness, coupled with his substantial increase in strength by said training, caused Koga to grow into a friendlier and kinder person. His sore loser tendencies appear to have also diminished, as thinking of Ohma no longer pisses him off. He even develops a proper friendship with Kokuro Utsubuki, who agreed to become his sparring partner in preparation for the tournament against Purgatory.
  • Training from Hell: Koga's training regimen to become a Kengan fighter is downright Spartan considering that he trains under different masters, especially once the deadline for the tournament approaches. He does ridiculous endurance and strength training with Sekibayashi at 7:00 AM, which involves doing thousands of Hindu squats, pulling Haruo and eating food to bulk up until he pukes. Afterwards, he jogs to Kureishi Dojo at 11:30, where he practices striking on a 150kg sandbag and develops grappling techniques by fighting Cosmo. He recuperates at 4:30 PM by forcing himself to drink protein supplements and vegetable drinks. By 7:00 PM, he practices Karate with his uncle by sparring against Rokushin Kaikan students. He ends his day by sparring against Kokuro Utsubuki at 10:30 PM. Jose Kanzaki, himself a powerful fighter, thinks Koga is crazy for working out so much. However, Koga brushes it off by napping between sessions, as well as gaining six more kilos in muscle.
  • Took a Level in Badass: Before training under other Kengan fighters, Koga was powerful enough to defeat multiple fighters but was nowhere near as strong as a Kengan fighter. After his training, he manages to defeat a bottom tier Kengan fighter, Murasame Shuya, and even bruise Kokuro up in their rematch, despite losing against him. Kokuro himself acknowledges that Koga's growth in strength and technique is abnormally fast, especially since Kokuro effortlessly defeated Koga without a scratch in their first fight.
  • Unknown Rival:
    • He is this to Ohma. In chapter 0, he decides to seek out the Kengan Association after seeing a picture of Ohma. The reason; Ohma beat him and his posse three years ago when he picked a fight with him. This grudge would later extend to Ryuki, based off of his appearance.
    • Turns out he wasn't so unknown. When a revived Ohma meets Koga again, he eventually thanks him for saving Kazuo and tells him he's gotten stronger. His improvement being recognised by Ohma was enough to move Koga to tears.
  • Ungrateful Bastard: What does he do after being healed by hospital staff after almost being killed by Kokuro? Completely trash the hospital room, breaking the bed and smashing the windows. He gets better.
  • Unlocking the Talent: His training with Sekibayashi and with Ryuki is meant to be this. It's clear that he has talent, but has never bothered to refine it. He outdoes other pro wrestlers in endurance training and is noted to have the basis of a great fighter, but lacks a certain aspect to his style. The most noticeable demonstration is when he manages to tag Ryuki in a Gaoh Style fundamental footwork exercise once out of 90 attempts, who was not actively trying to let him win at all. He later learns how to ice skate in seconds and how to withstand blows while ice skating without losing his balance in just an hour, something that surprised Adam Dudley as he thought it would take him longer to learn.
  • Unskilled, but Strong: Played With between this and Weak, but Skilled. Koga is indeed a decent and strong martial artist but lacked the discipline to actually complete his training, which had put him in a severe disadvantage to most other Kengan fighters. However, the strength he does have makes it so he was able to train and make up for what he was missing quickly. After months of training under Sekibayashi, Kureshi and his uncle Joji, Koga's attacks became enough to hurt an active Kengan fighter, albeit a bottom of the rung one. The additional three, intense Training from Hell he invoked on himself also caused him to gain six more kilos in muscle. It paid off with him fending off the five armed attackers that were supposed to kill him.
  • What the Hell, Hero?: Unleashes a tearful and devastated tirade against Ryuki once it becomes clear that his friend sees nothing wrong with killing people.
  • What You Are in the Dark: After constantly getting outperformed by Ryuki, Kokuro, Himuro, and Sekibayashi, Koga considers joining Purgatory to sharpen his fighting skills. However, Kazuo telling him that he believes that Koga could earn a spot as a fighter inspires him to work harder to become a Kengan fighter.

    Ryuki Gaoh 

The Dragon King

The Omega

Age: Unknown

One of the two main protagonists of Omega. A mysterious individual who resembles Ohma Tokita and bears the last name of the true creator of the Niko Style, Ryuki fights using the Gaoh Style. He is the fifth to fight in the Purgatory faceoff against Naidan Mönkhbat.

  • Arrogant Kung-Fu Guy: He's not arrogant in the sense he believes he's the best, but rather, Ryuki shows extreme loyalty to the Gaoh Style. He declines Kazuo's offer of being tutored by other Kengan fighters, believing his existing practices and techniques sufficient for any battle he might find himself in.
  • Ax-Crazy: Subverted. He seems utterly psychotic or downright homicidal with his brutal but relaxed attitude when it comes to killing someone. However, it's only truly focused on Worm members, where he's completely justified due to them being the main opposing force. It's his stunted emotional growth that gets in the way of explaining his actions if nothing else.
  • Badass Family: He's Mukaku Gaoh's grandson, who taught him how to execute Worm agents.
  • Berserk Button:
    • The mere mention of the word "Worm" sets him off. Koga referring to himself as a worm (in the sense that he is weak) was enough to set Ryuki off and threaten to kill him. This likely has to do with Worm, the organization that pursued Ohma and is otherwise responsible for a massive amount of the story's more negative events.
    • After befriending Koga, Ryuki becomes enraged whenever someone hurts his friend. His reaction when Yumigahama purposely strikes Koga in the liver was a combination of shock and barely restrained homicidal rage.
    • Questioning his grandfather seem to be his biggest one. When Naidan questions Ryuki's reasoning for killing Worm members and asks whether it's possible that his grandfather is wrong, Ryuki ditches his plan to fight without killing immediately.
  • Cloud Cuckoo Lander:
    • His other trait, aside from having No Social Skills, is that he is an airhead. Before his first match against Kokuro Utsubuki, he was more concerned about the strength of the air conditioning of the arena than the fact that he was about to fight. This is later shown to be a problem, with him lacking a conscience about killing people.
    • Despite being told that Ohma is "no longer with us" and having a whole room of people, mistaking him as Ohma, telling him that they thought he had died, he still has no idea what they are talking about, still wanting to meet Ohma in person.
  • Combat Pragmatist: He instinctively fights to kill and is willing to exploit any opening his opponent gives him.
  • Dramatic Dislocation: He can dislocate his shoulders to get out of a grab. However besides the obvious pain from doing that it also has the drawback that his shoulder is a weak spot even if he sets it back.
  • Expy: While he looks like Ohma, Ryuki's friendship with Koga gradually establishes him as being far more similar to Setsuna Kiryu due to being murderously protective of his friend and having a nigh-alien sense of ethics as far as human life goes. The focus of their fighting styles are also rather comparable as they're focused on agility, power, and attacks, mostly foregoing durability and grappling techniques.
  • Fatal Flaw: Many fighters have commented that the Gaoh Style won't get him anywhere in the Kengan Matches. It's because the style is based on surprise attacks that, once seen, can be countered by fighters. It may have been suitable for ancient Japan or the Inside, where they can kill their target without major repercussions, but is wholly unsuited for fighting in public.
    • This rears its head up when fighting Naidan, who is easily able to counter every technique Ryuki throws at him, even ones not seen by the reader before. Naidan states that the attacks are too direct and the setup has become sloppy.
  • Flawed Prototype: As its progenitor, the Gaoh Style has many superficial similarities to the Niko Style, but it lacks equivalents for the Redirection and Water Katas, making it a "hard" style that relies on bursts of speed, durability, and power to land hits rather than the more cohesive and flexible techniques available to Ohma. Although Ryuki has shown to be using Weeping Willow which shows that he's able to use flowing movements.
  • Glass Cannon: Downplayed, while Ryuki could be considered a Lightning Bruiser due to his immense speed and has exceptional power to where he could dent Kokuro's face with a simple punch, he's also able to take a lot of hits without being in much pain. However during his fight with Naidan, he is not able to take him head on due to the latter being immensely stronger than him and throughouly beats Ryuki down whenever he has the opportunity. He also has trouble damaging Naidan, as the only time he managed to hurt him was when he used his pragmatism by gouging his eye and stabbing his temple with an Iron Finger like technique.
  • Hidden Depths:
    • Metsudo, Kaede and Koga get the feeling that he has killed people before and is a dangerous person. He also goes from airhead to murderous when Koga mentioned "Worms". Also like Ohma, he grew up in The Inside.
    • The former is shown to be the case after his win against Kokuro, where he goes to finish him off out of habit and needs to be stopped by Kazuo before he can do so. Ryuki later reveals that he had only fought battles to the death before his match with Kokuro.
  • Identical Stranger: He looks almost identical to Ohma to the point where everyone, including Metsudo Katahara, mistakes him as whom. However, he's shorter and leaner him. Only the fighters who interacted with Ohma notice his differences between the two.
  • I Am Not Left-Handed: Because the Gaoh Style relied on surprise attacks, he was forbidden by his grandfather from using anything except Earth-Crouching Dragon in public. However, Ryuki is willing to use other techniques from the Gaoh Style against powerful opponents like Seishu Akoya.
  • Lack of Empathy:
    • He has a severe lack of conscience when it comes to killing people because of his upbringing. Notably, he agrees not to kill anyone in the Kengan Matches because the rules say so, and not because of any conscience telling him it's wrong.
    • He develops more empathy by becoming friends with Koga and forms bonds with the other members of Yamashita Trading Co. However, he still has troubles understanding that people are horrified at the idea of killing as he didn't notice that Koga was afraid of him after the latter caught him brutally murdering a member of Worm.
  • Like a Duck Takes to Water: In contrast with Ohma, Ryuki adapts to a traditionally modern lifestyle much more quickly and without much difficulty despite his maladjusted social skills and morality. He picks up reading and writing very easily (with Ohma remaining illiterate for the entirety of the first series), develops a keen understanding of modern technology with ease and picks up on social cues and issues with some surprising grace as his exposure to them has increased.
  • Made of Iron: His Gaoh Style: Armour Clad allows him to tighten his muscles like armor, just like the Niko Style's Indestructible technique. It is also used offensively to puncture through someone's vital with a hardened thumb.
  • Mistaken for Badass: Because of his Suspiciously Similar Substitute appearance to Ohma, when he makes his debut match, everyone thinks he's the Ohma who fought to the finals of the Annihilation Tournament. His lack of social skills and air-headed personality doesn't help convince people otherwise.
  • No Social Skills:
    • He admits to not being good with people, with almost every interaction being taken as a challenge to fight by accident. He pushes Koga's Berserk Button by calling him weak, then has no idea why he became pissed. Koga had also yelled at him continuously and had specifically told him that he disliked him.
    • According to Himuro, another person from The Inside, Ryuki is nothing like Ohma, he is completely closed off and fundamentally does not trust anyone.
    • He genuinely has no idea why Koga would be horrified at finding out his friend murdered someone and has no remorse over doing so. His initial reaction is to happily tell him that what he did was fine because he doesn't see the people he kills as humans, but insects. He then chalks up Koga's horrified reaction to this as stress over his exam.
  • Nice Guy: Unlike Ohma or Koga, he is cordial and avoids unnecessary fighting where possible. However, because of his lack of social skills and Cloud Cuckoo Lander tendencies, he finds himself in fights he could avoid.
  • No-Holds-Barred Beatdown: Akoya subjects him to one at the end of their fight when Ryuki hesitates to kill him due to remembering Koga's thoughts about killing. This hesitation cost him the fight.
  • Only Friend: Due to his social awkwardness and general distrust of people, Ryuki never had a true friend. It took him weeks of constant interaction with Koga before Ryuki realized he enjoyed Koga's company and treated him as his first friend.
  • Primal Stance: The main fighting stance of the Gaoh Style revolves a very low and relaxed posture. So far, two of the Gaoh Style techniques have been used in this stance.
  • Protagonist Title: He's the titular character of Kengan Ashura Omega, being The Omega.
  • Red Oni, Blue Oni: He is the clueless and calm Blue to Koga's hot-tempered and hardheaded Red.
  • The Rival: Ryuki initially views Koga as a vastly inferior non-threat. However, upon realising that Koga is getting stronger with each passing day (due in no small part to Ryuki helping to train him), Ryuki begins intensifying his training in fear of being left behind.
  • Sacrificed Basic Skill for Awesome Training: He was trained by his grandfather to be a very skilled user of the Gaoh Style, the precursor to the Niko Style. Unfortunately, his grandfather never taught him any social skills or empathy and is very much like a young child in his emotive and social capacity. He is worse than Ohma in this regard, seeing no issue with killing people (albeit members of Worm) and thinking of them like insects to be crushed.
  • Serial Killer: Seishu Akoya's investigations revealed that he was the one that killed the fake Mumon Yuzaki and two fake Kengan Association members. However, they were all members of Worm that killed the real counterparts and then surgically reconstructed their face to replace them.
  • Skilled, but Naïve:
    • He is skilled enough to overwhelm Ren Nikaido in their short fight with ease, but is a massive airhead and has only fighting experience from sparring his grandfather.
    • In his first fight against Kokuro, where he can initially get the upper hand and bring him to his knees with a well-placed attack to his solar plexus. However, he doesn't follow through and wonders why the hit didn't finish the fight, leading to him being kicked by Kokuro's Stinger.
    • Downplayed, when it comes to killing his opponents. Ryuki's actions make it quite clear that he knows the difference between fighting and killing, primarily killing members of Worm. Unfortunately, his underdeveloped sense of morality nearly causes him to kill Kuroko, and when discussing his most recent murder of a Worm member with Koga, he ends up alienating the latter from himself for a time.
  • The Stoic: Due to his Cloud Cuckoo Lander tendencies and bad social skills, he rarely shows any reaction, whether he's being yelled at, attacked, or about to fight in a Kengan Match. Even when his Berserk Button is pushed, he's more of a Tranquil Fury sort of individual. This is due to his severely stunted emotional growth.
  • This Is Unforgivable!: Downplayed but present with his relationship with Ohma. After Ohma declared he’d take Koga’s place in the showdown with purgatory Ryuki cannot bring himself to forgive him for stealing his friends chance (despite Koga admitting it was a good decision and showing not to hold a grudge over it). He’s proven very dower and aggressive whenever the topic of Ohma is brought up (or he is in proximity to him) and has admitted to others in private he can never like Ohma because of that slight against Koga.
  • Tyke Bomb: His fight with Naidan reveals his reasoning for killing Worm members is because his grandfather Mukaku told him so, and that Mukaku is never wrong and unquestionable. It is clear that he is basically a Worm killing machine who is fanatically loyal to his grandfather.
  • Unstoppable Rage: Unlike Ryuki's usual reaction to when something angers him, when Naidan threatens to kill Koga (who serves as his Morality Pet) Ryuki goes completely berserk and relentlessly attacked Naidan. The attack was so ferocious that the referee wanted to stop the fight, but Ryuki is too outraged to stop until Naidan dies despite knowing it would lead to a loss for the Kengan Association.
  • When All You Have Is a Hammer...: Justified. Ryuki exclusively uses a single move (Earth-Crouching Dragon) in all of his fights until his match with Akoya; there, he mentions that his grandpa told him never to use any move but Earth-Crouching Dragon in public.
  • Worf Had the Flu: Downplayed as Akoya was a tough opponent that could keep up with Ryuki. Just as Ryuki was about to use a technique that he believed would have killed Akoya, who was pinning him down until he remembered Koga's despair when Ryuki reveals that he kills people. This moment of hesitation was all Akoya needed to knock him out and beat him bloody.
  • Yandere: Of the friendship(?) variety towards Koga, his first real friend, to the point where he's ready to murder Yumigahama for swatting Koga in the liver in front of him.


    Kaede Akiyama

Voiced by: Yumi Uchiyama (Japanese), Erika Harlacher (English), Alicia Barragan (Latin American Spanish)

Age: ?

Nogi Hideki's secretary. And later Kazuo's in Omega.

  • Ambiguously Bi: When a drunk Rin gropes her at the hot springs, her reaction suggests some attraction to women.
  • Defrosting Ice Queen: Not necessarily cold, but she initially kept a professional distance to most people she interacted with the early chapters. As the story goes on she becomes more expressive and open the more time she spends with company.
  • Has a Type: Word of God says that she's into broad-minded and quiet men.
  • Opt Out: Early in the tournament she gets fed up with Nogi's underhanded tactics, especially his manipulation of Ohma and Yamashita, and decides to stop helping him completely. She doesn't quit her job though. She does quit properly in the epilogue, going to work for Yamashita after he properly set up Yamashita Trading Co.
  • Not So Above It All: Kazuo invites her to drink with him and Ohma. She responds with what looks like a Death Glare, then one cut later she's drinking along with them.
  • Not So Stoic: To save time, let's say it happens a lot whether the moment is comedic or not. Kaede is more socially awkward than a true stoic and her composure breaks more easily than other reserved characters.
    • When Ohma returns from being presumed dead, Kaede faints upon seeing him alive and well, and is the only character so far to do so.
  • Only Sane Woman: In comparison to the hysterical and inexperienced Kazuo, the fight-happy socially lacking Ohma, and well, practically everybody else.
  • Sexy Secretary: Kazuo and Rihito certainly think so.
  • Straight Man: To everybody else.
  • The Stoic: Word of God is that it's only because she's a very shy person. She steadily becomes less of this trope later on.
  • Vague Age:
    • Her age is listed as unknown. Though she looks to be fairly young, Kaburagi's Mosquito technique is stated to be most effective on people in their early 20s or younger and less so on anyone older to the point where they ignore it. Nogi's surprise (and teasing) that she and Ohma can hear it implies she's at least as old if not older than Ohma, who's estimated to be in his late 20s.
      Nogi: You've got pretty good ears for your-
      Akiyama: Shut up.
    • Going by one of the Gaiden stories, she is younger than Shion Soryuin's age of 35 as her youth and attractiveness was what convinced Sen to join the Nogi Group for his first match and set off Shion's Berserk Button.
  • Yamato Nadeshiko: She took a bottle of tea to Ohma that he had forgotten. Then when the Kengan Tournament started it's preliminaries, the doors shut close and she ends up getting locked in a separate room with Ohma and the other fighters. When Ohma merely told her to stay out of trouble, she chopped him on the head and demanded that he take responsibility and protect her until he completed the preliminaries.

    Rin Kushida

Age: 24

Secretary for Yamashita Trading Co., sent by Nogi to keep a close eye on Kazuo and Ohma. In Omega She has since become the companies Fighter Scouting department head, which has kept her abroad for most of the story.
  • Adapted Out: Kushida is not in the anime adaptation. Kaede takes most of her exposition from the manga.
  • Double Reverse Quadruple Agent: Is sent by Nogi to keep Yamishita out of trouble, which she tries to do, and is also keeping watch on Ohma and Nogi for Metsudo Katahara. She stops being this at the end of the tournament, going on to work for Yamashita properly in the epilogue.
  • Eyes Always Shut
  • Hidden Depths: Apart from her Double Reverse Quadruple Agent status, she also hides the fact that like Ohma, she is from The Inside.
  • Identical Stranger: To Suekichi Kaneda. In omake strips, other characters often wonder if they're related.
  • Put on a Bus: In Omega, she is constantly flying the globe on business meetings and is in Egypt at the start of the series.
  • Shipper on Deck: If it's any consideration, she first thought that Ohma and Kaede were a couple. Even afterward she's still thinking about it and sometimes playfully teases Kaede about the subject.
    Kushida: (After Ohma runs by being chased by Karla) ...So? Are you sure you can afford not to chase him yourself? (She'll take him from you!)
    Kaede: What are you talking about Miss Kushida? (You're making me angry.)
  • Tall, Dark, and Handsome: Her bio says this is her type.
  • The Bus Came Back: She makes her first actual appearance in Chapter 99 of Omega where she is only mentioned in earlier chapters.

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