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

Gender: Female. Age: 12. Appearance: Cute with clear, sparkling eyes. Expressionless. Her hair is tied to the side. Birthday: May 19th. Personality: She was being sold by a merchant when Kanae and Shinobu took her in. She is the adoptive younger sister of Kanae and Shinobu. Quiet and taciturn. She hardly speaks. She does nothing unless instructed. Likes: Kanae, Shinobu. Dislikes: Abuse. Hair Accessory: Wears a pink butterfly pin. Clothing: Wears a pink top with purple trousers.

Gender: Female. Age: 13 (at the time Kanao is young). Appearance: Black hair tied in twin tails with round butterfly wing-shaped pins. Blue eyes. Birthday: September 18th. Personality: She has a short 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 (wants to be close to her but doesn't show it). Dislikes: Demons, insincere people. Hair Accessory: Wears round wing-shaped butterfly ornaments on her twin tails. Uniform: Wears a blue-toned Demon Slayer uniform top and trousers with silver buttons. She walks around wearing a white apron.