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Yamashita Trading Co.

    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.

  • 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.
  • 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 Yamashita'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?
  • 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.
  • 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.
  • Mistaken for Badass: People seem to think he's much more intimidating and competent than he is. 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.
  • 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/Ashura
"So? You wanna fight, too?"

Voiced by: Tatsuhisa Suzuki (Japanese) Kaiji Tang (English) 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.

Ohma uses the "Niko Style", a very recent martial art that acts as a value package of useful techniques. 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 footwork and speed, Redirection Katas is for diverting and controlling the flow of power and Adamantine Katas enhances his strikes 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 speed thus allowing him to increase his damage output and along with his ferocity by overclocking his heart at the cost of reducing his life span.

  • 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.
  • 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 regain them.
  • 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 only effective for crushing fighters who are as strong as or weaker than Ohma, because the huge increase in blood circulation and the immediate effects it has on the mind makes his techniques less precise and renders some entirely unusable. In the end, the Advance was only enough to win by itself when he used it against Inaba, but he needed to use other methods to bring down the others he used it on, like striking Sekibayashi's windpipe. 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.
    • His usage of the Niko Style could also be considered this due to him focusing more on the complicated moves, such as the Flame and Redirection Katas which are likely the most difficult branches to master, rather than the more practical techniques. Using both of them involves having more of a mastery over one's ability to utilize the more skillful aspects of fighting such as being able to outmaneuver your opponent and also redirecting your opponent's flow of power at the risk of getting hit yourself.
  • 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 he activates his secret technique the Advance/Possessing Spirit and gets his blood boiling, he fights way more aggressively than usual and is compared to a wild animal in this state while sporting a savage grin on his face, showing that his mind is completely taken over by his love for fighting. In this state he lacks restraint due to maximizing the technique's output and will gain a terrifying appearance and be overcome with the urge to kill whomever he's fighting.
  • Big Eater: Ohma is shown in several parts of the manga to have a huge appetite for meat, particularly when Kazuo visits his home and 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 Sakura and the two of them eat all the meat, though Ohma had to use the Advance to keep up with Sakura. After the competition is over, Ohma reveals to Kazuo that he was so full that he could only finish 3 HAMBURGERS when he went home.
  • Black Eyes of Crazy: Unlocking the full output of the Advance causes a mutation to happen where his eyes darken as it shows striking similarities 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. He challenges random street opponents in search of a good fight and even holds back most of his strength so he can take the time to savor and enjoy these moments. 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 and then a godlike martial artist such as Gensai, it's clear that he's still enjoying himself immensely despite having one-and-a-half 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: Taking so many injuries in the Annihilation Tournament has showed how much damage Ohma has taken. When he fights Kuroki where he is covered in his blood from head to toe with several injuries being forced upon him by Wakatsuki damaging him severly as well as his final match.
  • Cast from Lifespan: His "Advance" technique boosts his physical attributes considerably at the cost of doing massive internal damage.
  • 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, but it's clear that Ohma's just satisfied with how far he's come, that he's avenged his master's death in his way and is fine with dying at that point.
  • 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.
    • Every time he's running from Karla, he's shot with a serious expression.
  • 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.
  • Determinator: Ohma will never give up in a fight even if he's about to die. Almost every one of his fights have him taking brutal amounts of damage. Even on the verge of death, his will to continue fighting is steadfast.
  • 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.
  • Explosive Overclocking: Activating the Advance causes Ohma to reveal an explosive aura around him.
  • Face Death with Dignity: Ohma has fully accepted that he is going to die soon, is satisfied that he fulfilled his goals and finally honoring his old master as he peacefully enters a long slumber while witnessing his final sunset.
  • 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)
  • 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 significantly to a more raspy and bestial tone to his voice representing his bloodthirsty nature.
  • The Hero Dies: Not only does he die, but he does so without winning the tournament, as Gensai Kuroki thoroughly crushes him even with repeated use of the Advance. Averted since its revealed in chapter 50 of Kengan Omega that Ohma is alive and well.
  • 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).
    • Had Ohma pulled out from the Tournament early, his chances of surviving death and still being alive would have drastically improved. Even though he survived in the end.
  • Hot-Blooded: Ohma usually has a dull personality where he's oblivious to mostly everything around him, but whenever he gets a chance to fight he becomes exceptionally more excited about the opportunity to go toe-to-toe with a strong opponent. He also expresses a more wild and erratic excitement when he turns up the heat with his Super Mode which allows him to get his blood going and increasing his emotional state where he goes on warpath with an enormous grin on his face. He's also prone to be quick to temper as whenever he feels irrirated or provoked by someone he starts to act more rashly out of instinct and to settle his matters with violence.
  • 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.
  • Jerk with a Heart of Gold:
    • Ohma has a serious lack of tact and is quick to using violence to solve his problems, but at the very least his friendship with Kazuo is genuine, and he has nothing but respect and faith in him.
    • He also isn't 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 when he was indeed rude to his master Niko he did care enough about him to go on a 10 year search of revenge for his killer.
  • 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: Besides being able to take a lot of punishment, one branch of his Niko Style martial arts is the Adamantine Kata, which focuses on hardening the body.
  • Mangst: Ohma does not like talking about his issues and usually isolates himself if he's ever feeling distress or uses this as fuel so he can 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 moniker, the Asura/Ashura, 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. Its real name, the Possessing Spirit, is also this, as anyone who uses it is known as one of the Tiger's Vessels, as the ability increases the user's ferocity 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.
  • 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.
  • Red Baron: The Asura/Ashura.
  • 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 his desire for revenge and ends up actually feeling sorry for Kiryu, the student of Niko's killer and one of the main reasons why Niko died 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, augmenting his skills with the instincts from his rough childhood as well as being taught the basis of martial arts through one of the most unique and versatile ways of fighting known as the Niko Style. 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, even before he uses the Advance which gives him a much larger pillar of strength.
  • 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 Niko Style techniques, especially the Adamantine Katas which require full muscle control, are 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 th finals, he's more or less dead on his feet, and the Advance barely makes a difference against Gensai Kuroki.
  • 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 clearer.
    • 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 speed he produces allows him to maximize his damage output. Wakatsuki states it to be his "rotational strength" and can even punch through hard exteriors. He 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 moving at superhuman speeds and mostly uses this advantage to attack head-on with his increased ferocity.
    • With his Flame Kata, he can dance around or outmaneuver anyone with his quick footwork.
  • 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 and his life, 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.
  • Turns Red: When using the Advance.
  • Unskilled, but Strong: Normally, Ohma is far from being unskilled. But when he uses the Advance, he becomes incredibly powerful but lacks the precision needed to make his strikes hurt where it counts. Instead, he relies on randomly attacking areas where he can deal a lot of damage, just not as efficiently.
  • 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.
  • 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.
  • 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.

    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.
  • 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, 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.
  • 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.
  • 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.
  • 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.
  • Idiot Hero
  • 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.
  • 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.
  • 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.
  • 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 own 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.
  • 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.
  • 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

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.

  • Arrogant Kung-Fu Guy: He's not really 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.
  • Badass Family: Very heavily implied to be Mukaku's grandson, though it has yet to be stated outright.
  • 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.
  • 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.
    • In spite of 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.
  • 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.
  • 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 reprecussions, but is wholly unsuited for fighting in public.
  • 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 Ohma. He is shorter, lighter and leaner than Ohma though. Only the fighters who interacted with Ohma notice Ryuki's differences between the two.
  • I Am Not Left-Handed: Because of the Gaoh Style's reliance 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 to not 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 Company. 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.
  • Made of Iron: His Gaoh Style: Armour Clad allows him to tighten his muscles like armor, just like the Niko Style's Indestructible technique.
  • 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. This is after Koga had 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.
  • 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 strike 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 ends up alienating the latter from the former 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 shows Tranquil Fury. This is because he has a severe Lack of Empathy and emotive capability.
  • 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 completely stop helping him. She doesn't actually 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.
  • 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 actually 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 forgot about. 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.
  • Adapted Out: Kushida is not in the anime adaptation, with 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.

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