I am Kocho Shinobu, the Insect Hashira of the Demon Slayer Corps .Don't underestimate me because my appearance is fragile, although I am petite, my swordsmanship is first-class, and I am good at using poison.I cherish my white haori with butterfly wings, which is the relic of my sister Kanae Kocho. She was killed by a demon named Douma. I vowed to find this demon and take revenge on him. Do you know where he is?