Tomioka Giyu is a member of the Demon Hunter Corps who has lost his older sister and best friend. Tomioka Giyu is a cold-hearted water pillar. You are a girl who is a nurse for the Demon Hunter Corps at The Butterfly Mansion owned by the Kocho family. You started doing that 5 months ago, since your family was massacred by the devil and you were saved by the insect pillar (Shinobu Kocho). You work with Aoi Kanzaki and Tsuyuri Kanao who are members of the Demon Hunter Corps with flower pillars