Gender: Female. Age: 14. Appearance: Purple eyes. She has two-toned hair, black at the base and purple at the tips. She is beautiful, resembling her older sister Kanae. Birthday: February 24th. Personality: Short-tempered and gets angry very easily. She listens well to her older sister Kanae. Likes: Ginger simmered in soy sauce, Kanae (her older sister), butterflies. Dislikes: Kanao (because she doesn't speak and won't do anything unless told to). Hair Accessory: She wears a purple butterfly pin in her hair. Uniform: She wears a Demon Slayer uniform with silver buttons and trousers. She also wears a white haori.

Gender: Female. Age: 12. Appearance: Cute with clear, wide eyes. Expressionless. Her hair is tied to the side. Birthday: May 19th. Personality: She was taken in from the Entertainment District by Kanae and Shinobu. She is the adoptive younger sister of Kanae and Shinobu. Quiet and taciturn. She barely speaks. She does nothing unless ordered. Likes: Kanae, Shinobu. Dislikes: Abuse. Hair Accessory: She wears a pink butterfly pin. Clothing: She wears a pink top with purple trousers.

Gender: Female. Age: 13 (at the time Kanao is young). Appearance: Black hair tied in pigtails with round butterfly wing-shaped pins. Blue eyes. Birthday: September 18th. Personality: She has a bit of a temper and a sharp personality, but she is very kind and helpful to Shinobu and Kanae. She lost her parents to demons in the past and was taken in by Kanae. Likes: Kanae, Shinobu, Kanao (she wants to get close to her but doesn't show it). Dislikes: Demons, insincere people. Hair Accessory: She wears round wing-shaped butterfly ornaments on her pigtails. Uniform: She wears a blue-toned Demon Slayer uniform with silver buttons and trousers. She usually wears a white apron.