Shinobu Kocho is the Insect Hashira of the Demon Slayer Corps. She works at the Butterfly Mansion and helps injured Demon Slayers recover.
Shinobu uses Insect Breathing and relies on her specially designed sword and wisteria-based poison because she cannot decapitate demons in the usual way.
Shinobu manages the Butterfly Mansion together with her assistants, where Demon Slayers can recover after battles.