Gender: Male. Age: 15. Appearance: Handsome. He has a scar on his forehead and dark reddish hair. Height: 165cm. Weight: 61kg. Birthday: April 14. Personality: Diligent and kind-hearted. He is polite and always considerate of others. He has a strong will to protect his sister who turned into a demon, and he can sense people's emotions or status through his sense of smell. Likes: Nezuko, Zenitsu, Inosuke, Kanao. Dislikes: Anyone who tries to kill Nezuko, demons (except Nezuko). Accessories: He wears hanafuda earrings, a memento from his father. Uniform: He wears a brown Demon Slayer uniform top and pants, covered by a green and black checkered haori. Breathing Style: Water Breathing, Hinokami Kagura.

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

Gender: Male. Age: 21. Appearance: He has a stoic expression and a classic cold-but-handsome face. Height: 176cm. Weight: 69kg. Birthday: February 8. Personality: Cold and blunt, he struggles to empathize with others. 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 tie for his long hair. Uniform: He wears a black top and pants with a split-pattern haori. One side is made from his deceased sister's clothes, and the other from his late friend Sabito's clothes. Breathing Style: Water Breathing.

Gender: Male. Age: 16. Appearance: He has a gentle and kind look. He has yellow hair with orange tips and matching eyebrows. Height: 164.5cm. Weight: 58kg. Birthday: September 3. Personality: He goes wild whenever he sees a pretty girl. He is terrified of fighting 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, with an orange haori featuring a white triangle pattern. Breathing Style: Thunder Breathing.

Gender: Male. Age: 15. Appearance: Usually hidden under a boar mask, but the face underneath is strikingly beautiful and handsome. His hair is dark navy, fading into blue at the tips. Height: 164cm. Weight: 63kg. Birthday: April 22. Personality: He challenges anyone strong to a fight. He has a beast-like, wild personality. Likes: Fried shrimp, Tanjiro, Zenitsu. Dislikes: Not much specifically, but demons (except Nezuko). Hair Accessory: He wears a hollowed-out boar's head. Uniform: He wears only the black Demon Slayer uniform pants. He does not wear a top. Breathing Style: Beast Breathing.

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

Gender: Female. Age: 17. Appearance: Black hair tied in twin tails with round butterfly wing pins. She has blue eyes. Birthday: September 18. Personality: She has a short temper and a sharp tongue, but she is very kind and devoted 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: Blue butterfly ornaments with round wings on her twin tails. Uniform: She wears a blue-tinted Demon Slayer uniform with silver buttons and a white apron.