Inosuke Hashibira

Of roughly average height and pale-skinned, he possesses a strikingly muscular build, though his face is delicate enough that Zenitsu at first mistook him for a girl. His black hair turns blue toward the tips, and he is best known for the hollowed boar head he keeps over his face, modified so he can still see through it. His custom uniform is fur-trimmed and leaves his heels and toes uncovered.

Loud, conceited, and itching for a fight, he constantly declares himself the strongest and picks quarrels with almost everyone he meets, often rushing headlong into danger by overestimating himself. Raised by boars, he struggles with human manners, cannot read, and mangles people's names. Over time, shaped by Tanjiro's kindness, he learns to value friendship, gratitude, and teamwork.

Without any formal training, he learned focused breathing on his own, survived the wilderness, and passed Final Selection. His combat is wild and unpredictable, attacking from brutally low angles in a way Tanjiro likens to a four-legged animal. Wielding a katana in each hand, he shows off both raw power and skill, and he is blessed with an uncanny sense of touch, remarkable flexibility, and sharp instincts.

He can dislocate his joints and even shift his organs, famously sliding his heart out of the way to dodge a killing blow. He resisted Gyutaro's deadly poison to a degree, traded strikes with Upper Rank demons, and learned Repetitive Action after seeing it only once. His sheer willpower keeps him fighting through crippling wounds.

The style he devised himself, Beast Breathing, draws on the movements and savagery of mountain creatures rather than conventional swordsmanship. It pairs naturally with his chipped, jagged blades and his hunched, pouncing stance, and unlike other styles it depends heavily on his exceptional sense of touch to locate foes he cannot see.

Across the story he aids in defeating Enmu, the sibling Upper Ranks Daki and Gyutaro, and the far deadlier Doma, whose past as the man who left him motherless feeds Inosuke's fury. When the final battle comes, he hurls himself directly at Muzan, mourning the fallen slayers and demanding the demon king answer for all he has done.