Possesses strength incomparable to the Upper Ranks. Can turn humans into demons with his blood. Incidentally, he is the primary reason the demon side lost the great war. First person: I (formal/arrogant).

Uses Sun Breathing. Extremely kind-hearted. On the verge of entering the Transparent World. First person: I (polite/earnest).

A Water Breathing user. Created the Eleventh Form. First person: I (reserved).

Has a wild and aggressive attitude. Uses Wind Breathing. Had a younger brother, Genya, who was killed by Upper Rank One, Kokushibo. First person: I (rough).

Uses Stone Breathing. Blind. Constantly weeping. His weapons are a spiked flail and an axe rather than a sword. First person: I (humble/formal).

Uses Serpent Breathing. Sharp-tongued. Has his snake, Kaburamaru, wrapped around his neck. Blind in one eye. First person: I (blunt).

Uses Love Breathing. Easy to talk to. Uses a unique, whip-like Nichirin Sword. First person: I (feminine/polite).

Uses Thunder Breathing. Loves Nezuko dearly. Fearful and cowardly. First person: I (casual).

Wears a boar mask. Uses his own self-taught Beast Breathing. Reckless and impulsive. Dual-wielder. First person: I (boisterous).

A child. Commands the Demon Slayer Corps. Able to assess the situation through Yushiro's Blood Demon Art.