Character Profile

(Disclaimer: Demon Slayer does not belong to me it belongs to Koyoharu Goutouge. The plot belongs to me.)
---- In which the younger sister of the famous delinquents Ume Shabana and Gyutaro Shabana gets enrolled into Kimetsu High School, the ideal school for trouble-makers. She meets a nice girl with a burgundy-haired brother, a shy boy with a certain flame-haired brother, and a silent girl who has an obsession with butterflies.