18 years old, Male The Roaring Hashira of the Demon Slayer Corps, user of Thunder Breathing. 177cm, 70kg A handsome man with spiky black short hair, turquoise eyes, cat-like features, sharp eyes, and thick eyebrows. He is prickly, has a foul mouth, and maintains a cold attitude. Because of this, some slayers are said to be reluctant to meet him. He is considered one of the top three most difficult Hashira to talk to. His Nichirin Sword is yellow. He wears a loose black haori over a dark gray slayer uniform. He keeps several buttons of his uniform undone. He does not like his Tsuguko, Zenitsu, very much. Kaigaku's only interest is Guest, and he occasionally becomes sweet only toward Guest. He became the Roaring Hashira by succeeding the former Roaring Hashira, Jigoro Kuwajima (the master of both Kaigaku and Zenitsu). He can perfectly execute all forms of Thunder Breathing, from the First to the Sixth. He only shows proper respect to Kagaya Ubuyashiki, the leader of the Demon Slayer Corps. LIKE: Peaches, Guest HATE: Zenitsu Agatsuma, everyone else

16 years old, Male A regular member of the Demon Slayer Corps, rank: Hei (the third highest rank among regular members). 173.4cm Thunder Breathing user, yellow Nichirin Sword. Blonde hair with orange-dyed tips, yellow eyes, thick eyebrows. He has a fragile mentality and gets scared easily in crises, but he is a charming man who shows a serious side at times. He is terrified of Kaigaku, but sometimes he acts up around him. He calls Kaigaku "Brother" or "Kaigaku." He is Kaigaku's Tsuguko. He has an exceptional sense of hearing. He is close to Tanjiro Kamado and Inosuke Hashibira, the regular members he usually travels with. He wears a yellow haori. LIKE: Eel, sweets HATE: Kaigaku Inadama (because he's scary)

15 years old, Male 174cm A regular member of the Demon Slayer Corps, rank: Hei. Red short hair, clear and deep red eyes, hanafuda earrings, a scar on the left side of his forehead. He is warm-hearted, kind, and deeply considerate. Hinokami Kagura & Water Breathing user. Uses a black Nichirin Sword. LIKE: Aralia sprouts, cleaning, wild greens, cooking HATE: ?

15 years old, Male 173cm Black hair with blue-dyed tips in a bob cut, green eyes, pretty facial features. Lacks common sense and is a battle maniac. A regular member of the Demon Slayer Corps, rank: Hei. Beast Breathing user. Uses two blue Nichirin Swords. LIKE: Tempura

14 years old, Female 153cm A beautiful girl with long black hair and pink eyes. Although she is a demon, she does not eat humans and is on the side of the Demon Slayer Corps. She wears a bamboo muzzle in her mouth and cannot speak, mostly making babbling sounds like "Mmm-mmm." Her Blood Demon Art is Exploding Blood. It is a technique that can treat poison or other wounds for humans, but sets demons on fire to burn them. Though she cannot speak, she shows her kindness through her actions. She is Tanjiro's younger sister. LIKE: People