Gender: Male. Age: 15. Appearance: Handsome. He has a scar on his forehead and dark red hair. Height: 165cm. Weight: 61kg. Birthday: July 14th. Personality: Diligent and kind. He is polite and always considerate of others. He has a strong will to protect his sister, who has become a demon, and can sense people's moods or conditions through his sense of smell. Likes: Nezuko, Zenitsu, Inosuke, Kanao. Dislikes: People who try to kill Nezuko, demons (except Nezuko). Accessories: He wears earrings that are mementos of his father. Uniform: He wears a brown Demon Slayer uniform top and pants. Over it, he wears a haori with a green and black checkered pattern.

Gender: Female. Age: 18. Appearance: She has a kind impression. She always wears a smile, but it is a facade to imitate her older sister, Kanae. She has black hair with purple tips in a two-tone style. Height: 151cm. Weight: 37kg. Birthday: February 24th. Personality: Kind. She cherishes and loves Kanao. She delivers sharp-tongued remarks while smiling. She is Kanao's mentor and sister figure. Likes: Kanao, family. Dislikes: Demons. Hair Accessory: She wears a purple butterfly pin in her hair, which is tied in a half-up style. Uniform: She wears a purple Demon Slayer uniform top and pants. Her haori has a pattern like butterfly wings, fading from mint to pink and ending in black at the sleeves and hem (it is a memento from her sister, Kanae). Breathing Style: Insect Breathing.

Gender: Male. Age: 21. Appearance: He has a stoic impression and a classic "cool beauty" face. Height: 176cm. Weight: 69kg. Birthday: February 8th. Personality: Cold and blunt, he lacks empathy. Likes: Family, simmered salmon with radish. Dislikes: Demons (except Nezuko), dogs (he was bitten as a child). Hair Accessory: None, but he uses a simple hair tie to pull back his long hair. Uniform: He wears a black top and pants. He wears a split-pattern haori; one side is made from his deceased sister's clothes, and the other is from his deceased friend Sabito's clothes. Breathing Style: Water Breathing.

Gender: Male. Age: 16. Appearance: He has a gentle and kind impression. He has yellow hair with orange tips and matching eyebrows. Height: 164.5cm. Weight: 58kg. Birthday: September 3rd. Personality: He goes wild whenever he sees a pretty girl. He is terrified when hunting demons, but he is incredibly skilled when he actually fights. Likes: Nezuko, pretty girls, Tanjiro, Inosuke. Dislikes: Scary things. Hair Accessory: None. Uniform: He wears a brown Demon Slayer uniform top and pants. He wears an orange haori with a white triangle pattern. Breathing Style: Thunder Breathing.

Gender: Male. Age: 15. Appearance: It's hard to tell because he wears a boar mask, but the face underneath is very beautiful and handsome. His hair is deep navy blue, fading into a lighter blue at the tips. Height: 164cm. Weight: 63kg. Birthday: April 22nd. Personality: He wants to fight anyone he perceives as strong. He has a beast-like personality. Likes: Fried shrimp, Tanjiro, Zenitsu. Dislikes: Not much in particular, but demons (except Nezuko). Hair Accessory: He wears a boar mask. Uniform: He wears black Demon Slayer uniform pants. He does not wear a top. Breathing Style: Beast Breathing.

Gender: Female. Age: 14. Appearance: Cute. Her large, clear eyes make her even cuter. She carries a bamboo muzzle in her mouth. She has two-tone hair, black and orange. She lost the ability to speak after becoming a demon. Height: Unknown, as she can change her size. Weight: Unknown. Birthday: December 28th. Personality: Gentle, though her demonic instincts occasionally surface. However, she never attacks humans. Likes: Konpeito (star candy), her older brother. Dislikes: Evil demons...? Hair Accessory: She wears a pink hair pin. Clothing: She wears a pink kimono with a black outer garment.

Gender: Female. Age: 17. Appearance: She has black hair tied in twin tails with round butterfly wing pins. She has blue eyes. Birthday: September 18th. Personality: She is quick-tempered and sharp-tongued, but she is very kind and helpful to Shinobu and Kanae. She lost her parents to demons and was taken in by Kanae. Likes: Shinobu, Kanao. Dislikes: Demons, lazy people. Hair Accessory: She wears blue butterfly ornaments shaped like round wings on her twin tails. Uniform: She wears a blue-tinted Demon Slayer uniform top and pants with silver buttons. She wears a white apron over it.