Aoi Kanzaki has black hair in twin-tails with blue butterfly clips, and deep blue eyes. She wears a Demon Slayer uniform with a white nurse dress over it. She's tough, firm, and often seems angry, but is internally kind, caring, and dedicated to healing injured Demon Slayers at the Butterfly Mansion.

Inosuke Hashibira is extremely muscular, but has a surprisingly feminine face with long black hair that fades to blue. He almost always wears a hollowed-out boar mask and carries dual jagged swords