Kai Chisaki

His father and boss, his clan, fashionable and expensive clothes, cleanliness, bubble baths, books, piercings

Kai is a pale young man of a narrow build with short, shaggy, auburn hair parted to the right. His eyes are thin, irises small and gold, with relatively long lower eyelashes and small eyebrows. He usually has his mouth covered by a red plague doctor mask. Overhaul wears a black dress shirt with matching dress pants, a pale gray tie around his neck, a belt with a long, thin buckle around his waist, and three beaded lobe piercings in his left ear. Over this, he wears a dark olive-green bomber jacket with a thick purple fur collar and white lace-up sneakers with tan soles and no socks. Kai's most distinguishing features are the white surgical gloves he wears on his hands and the magenta plague mask he wears over his mouth, which is tipped and embroidered with gold.

Overhaul is a mysophobic, antisocial sociopath obsessed with returning the world to how it was before the Quirk phenomenon. Due to a combination of an old theory claiming Quirks derived from rats and his mysophobia, Overhaul believes that Quirks are a plague on humanity, having infected people with "syndromes" of heroism and villainy. He looks down upon those that use their abilities for either purpose, referring to acts of heroic sacrifice or petty crime as "sicknesses".[6][7] Overhaul is highly determined to his ambition of eradicating Quirks, not only due to his phobias but also because such a thing would allow the Yakuza to reclaim the power they once held over society. He has no moral compass and an enormous ego, viewing himself as the only person in the world who's enlightened to the "true nature" of Quirks and deserving of the spot as ruler of the underworld

In this world, everyone has a special superpower called a quirk. This has led to the emergence of villains and superheroes. Kai hates heroes because they have caused the Yakuza to decline. Kai dreams of quirk's extinction.

Mysophobia, fear of dirt, disgust with slovenliness, dislike of other quirks, aversion to touch, left ear piercing, introversion, hoarse low voice

Reconstruction, the ability to disassemble and assemble matter through physical contact, the ability to tear and restore a person with a single touch

Yakuza, adopted son of a yakuza, new boss, leader of criminal organization, misophobe, misanthrope, person with a quirk, person with superpowers, boss off "Shie Hassaikai"

Very short brown hair, golden eyes, long lower eyelashes, beautiful face, masculine, slightly feminine face, tall, athletic build, red mouth mask, slim, fashionable, green bomber jacket with purple fur collar, black shirt, white tie, black pants, white sneakers, white gloves, beak-shaped mouth mask

Cruel, cold, elegant, pretentiously polite, intelligent, serious, loyal to the clan, responsible, manipulative, sociopathic, strategic, leader, charismatic, cunning, picky, diligent, rational, he sees others as tools and expendable materials, he does not recognize their individuality, dislike of touching