Characters / AIKI

A list of characters in the manga AIKI.
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     Kunitoshi Joukyuu and Allies/Disciples 

Kunitoshi Joukyuu is an expert martial artist, renowned for his prowess in the art of grappling and throws. About ten years before the start of the series, the bones in his body were dislocated and relocated overnight by his father, who wanted to teach Joukyuu a lesson about humility.

Despite this, Joukyuu still retains the majority of his technical skill in martial arts, as well as his crass, self-serving, perverted nature.
  • Anti-Hero: Joukyuu is one of the few and rare male protagonists that seem more like a villain than an actual hero. Though his actions do always end up saving the day at the last minute, the journey to get there is a completely different story.
  • Arrogant Kung-Fu Guy: Through and through, with the caveat that he has earned the right because he is an extremely difficult opponent to fight. It only gets worse as his body begins to recover.
  • Awesomeness by Analysis: Skilled at dissecting the weaknesses and strengths of a particular fighter's style even if he's never encountered it before.
  • Badass in a Nice Suit: While teaching at Ryobu University. Ditches the suit jacket later, though.
  • Break the Haughty: His father's decision to dislocate his joints was an attempt at this. It didn't take.
  • Combat Pragmatist
  • The Cynic: Through and through; he derides traits and ideas such as friendship and fair play, stating that anything goes in a fight and that friends are for weaklings.
  • Flash Step: The Wind and Thunder Step techniques, which are performed by doing a series of ridiculous poses with exacting precision.
  • Handicapped Badass: He may still be ambulatory, but attempting to use too much of his strength at once will cause his bones to dislocate themselves (such as when he used his Raijin techniques against Karasumaru).
  • It Amused Me: Joukyuu's reasoning for doing almost anything is more or less centered on whether it will entertain him (or give him a chance to score with a girl).
  • Lack of Empathy
  • Jerk Ass: Prominent character trait.
  • Jerk with a Heart of Gold: It's extremely hard to find, but whenever he offers even the slightest bit of advice to his "disciples" or assists them in a roundabout way (such as breaking Mei's fight against Sarutari into rounds, so that she wouldn't be totally decimated in one long brawl), it shows through.
  • Older Than They Look: The primary difference between Joukyuu at 16 and Joukyuu at 26+ is the fact that he's dyed his hair and got some bags under his eyes. Otherwise, he looks exactly the same. He gets rid of the dye by the time he's seen in Aiki S.
  • Picky Eater: If it's not Japanese food, you'd better bet he'll make a fuss about having to eat it, let alone look at it.
  • Power Limiter: The dislocations in his body, which are gradually fixed as the manga goes on thanks to Mei's grandmother or injuries he receives from swords.
  • Red Baron: Is known as the "Gravity Master" due to his expertise in throwing techniques.
  • Sink-or-Swim Mentor: For the most part. He will give an occasional hint, and maybe a demonstration, but that's about all; he's otherwise perfectly willing to let his "disciples" get the snot kicked out of them to figure out what he's trying to teach them.
  • Slasher Smile: When he's in the mood to kick some ass.
  • Weak, but Skilled: In comparison to his old self, who had power, speed, and technique; he's kept the last two (and in fact has improved on his technique, since he's been forced to use his strength conservatively). This slowly becomes less of an issue as his body continues to recover.
  • What the Hell, Hero?: Everyone (including even the antagonists) call him out on his insane tactics in battle and have all agreed that someone like him shouldn't be allowed to live. Though, with Joukyuu's incredible skill its not as if they can actually pull it off.
  • World's Strongest Man: Even when he's not at 100 % of his fighting ability, there isn't a single fighter shown in the series that has a chance against him one on one. Karasuma and Veronica (who are both super human themselves) where the only ones that could force him to fight seriously and even then, he still wasn't even using his full power. It frightens everyone to think of how overpowered he would be if he wasn't handicapped.
  • Would Hit a Girl: The words "Chivalry" and "Joukyuu" can never be used in the same sentence. The man has absolutely no qualms about beating the living tar out of female fighters that challenge him and makes a point about how martial artists should never let something as gender hold them back.
    • In the early chapters Kizuki thought Joukyuu was chivalrous when Metera and Hou Mei were able to beat him up and he didn't fight back. Turns out that his body was severely handicapped at that point and he could only use 10 % of his full strength.

Rin Kizuki granddaughter of the school board's chairman; a third-year student at Juuzenji High. Her grandfather asked her to watch over the school in his absence.
  • Action Girl
  • Little Miss Badass
  • Muscles Are Meaningless: She relies on momentum-based throwing and maneuvers, though she has demonstrated the ability to hit above her weight class.
  • Older Than They Look: By the end of the first arc, she's old enough to attend Ryobu, and for all of that still looks like a preteen or a teenager.
  • Waif-Fu
  • Weak, but Skilled: Much like Joukyuu, down to the heavy reliance on throws. Unlike him, though, she can't branch out from throws very much because she doesn't have the build for it.

Metara English teacher at Juuzenji, and one of Kizuki's bodyguards. Uses a pair of modified pistols.
  • Can't Catch Up: Due to her lack of actual martial arts skills.
  • The Gunslinger
  • Lead the Target: The primary skill that Metara has yet to learn, which is what hampers her ability to fight.
  • Wandering the Earth: Left Juuzenji for a while when she realized that she wasn't strong enough to protect or fight alongside Kizuki. Returns partway through the first arc.

Mei Hou gym teacher at Juuzenji, and one of Kizuki's bodyguards. Uses Kung Fu; in the past, she used her style's powerful internal strikes to compensate for her lack of muscularity, but has chosen to develop her physical strength instead.

Miu Takatori's cousin and the daughter of Juuzenji's principal. A third-year student, and the top martial artist of the class, she wants to enter Ryobu University, and initially approaches Joukyuu in order to enlist his help in fighting against Kizuki.

Akemi Kageyasu's first "disciple", trained by him before the story starts, and Daiki Karasumaru's girlfriend. A student at Ryobu University.
  • Action Girl
  • Amazonian Beauty: She is depicted as an attractive woman with a muscular yet lean and curvaceous build. Usually, she wears a bra-top underneath a short leather jacket that allows her to flaunt her defined and well-toned abs.
  • Flash Step: Not only can she use Joukyuu's Thunder Step, but she can combine it with rapid jutte strikes to attack from multiple angles.
  • Insistent Terminology: Even when Joukyuu's being the scummiest of scum, she will call him sensei/master without fail.
  • Weapon of Choice: A pair of jutte. Later in the series, she devises a way to turn it into a staff with one jutte at each end.

    Juuzenji High School Students 

    Ryobu University 

Daiki Karasumaru

The older brother of one of Juuzenji's Twelve Knights and the leader of his own group at Ryobu University.

Seiji Sarutari

    The Houju Family 

Kaneoto Houju

The greatest swordsman still living in the world, despite his advanced age. He and his family become the targets of a terrorist named Veronica and her organization because they're in possession of the legendary sword, Heaven.

  • Handicapped Badass: He's got cataracts and is rheumatic, which basically cripples his eyesight, power, and speed all at once. He's still more than a match for pretty much anyone else in the series, Joukyuu included.
  • Old Master: With his advanced age comes great skill due to his years and years of practice. It's a deconstructed example because he lacks the stamina he had in his youth and several health problems.
  • Picky Eater: He greatly dislikes the European food he's been living on for a while, and greatly prefers Japanese food.
  • Weak, but Skilled: His great age has definitely affected him a lot, but he's more than good enough to compensate for it.


    Other Characters 

Tatsukuni Joukyuu

Joukyuu's father, and thus, the one responsible for limiting Joukyuu's physical strength.
  • Combat Medic: In Joukyuu's own words, Tatsukuni was a middling martial artist, but had extensive knowledge of the human body.
  • Posthumous Character: By the time the series has started, he's dead. He has made an appearance in one flashback and is infrequently referred to by the other characters, usually in the context of Joukyuu's disability.