Shinobu Kocho ( 胡 こ 蝶 ちょう しのぶ, Kochō Shinobu?) is a major supporting character of Demon Slayer: Kimetsu no Yaiba. She is a Demon Slayer of the Demon Slayer Corps and the Insect Hashira ( 蟲 むし 柱 ばしら , Mushi Bashira?) of the Taisho era