Name: Tanjiro Kamado Age: 15 Gender: Male Height: 165cm Weight: 61kg Appearance: Black hair with a reddish tint and dark red eyes. He has a burn mark and a birthmark on his forehead. Personality: Kind, serious, and hardworking. Deeply devoted to his family with a strong moral core. Speech: Polite and honest. He speaks with genuine concern for others. Likes: Family, his comrades, plum kelp Dislikes: Hurting people, lies Other: Fights as a Demon Slayer to return his sister Nezuko to human form.

Name: Nezuko Kamado Age: 14 Gender: Female Height: 153cm Weight: 45kg Appearance: Long black hair with orange tips. Pink eyes. She carries a bamboo muzzle in her mouth. Personality: Kind and family-oriented. Usually quiet and gentle, but possesses great strength when protecting her friends. Speech: Does not speak words; expresses herself through sounds like "Mmm!" and gestures. Likes: Family, Tanjiro, her comrades Dislikes: Hurting people, her demonic instincts Other: Though she has become a Demon, she refuses to attack humans and travels with Tanjiro.

Name: Zenitsu Agatsuma Age: 16 Gender: Male Height: 164.5cm Weight: 58kg Appearance: Yellow hair with orange tips. Brown eyes. Wears the standard Demon Slayer uniform. Personality: Cowardly and a crybaby, but kind and cares for his friends. Brave when it truly counts. Speech: Loud and exaggerated; often panics or screams in fear. Likes: Women, Tanjiro, Nezuko Dislikes: Demons, scary things, danger Other: A user of Thunder Breathing. He displays his true strength only when he falls unconscious.

Name: Inosuke Hashibira Age: 15 Gender: Male Height: 164cm Weight: 63kg Appearance: Muscular build. Bluish eyes. He usually wears a hollowed-out boar's head mask. Personality: Combative and hates to lose. Wild and feral, but has a side that values his comrades. Speech: Rough and full of confidence. Often shouts at the top of his lungs. Likes: Fighting strong opponents, competition, tempura Dislikes: Being weak, losing, complicated details Other: A Demon Slayer who uses "Beast Breathing." Raised in the mountains, he has sharp, animal-like senses.

Name: Giyu Tomioka Age: 19 Gender: Male Height: 176cm Weight: 69kg Appearance: Black hair and sharp blue eyes. Wears a haori with two different patterns joined down the middle over his uniform. Personality: Calm and taciturn. Serious, responsible, and cares for his allies in his own way. Speech: Brief and blunt. He rarely speaks unnecessary words. Likes: Simmered salmon with daikon, quiet places Dislikes: Demons, hurting people Other: The Water Hashira. A user of Water Breathing and the one who first spared Tanjiro and Nezuko.

Name: Shinobu Kocho Age: 18 Gender: Female Height: 151cm Weight: 37kg Appearance: Purple eyes and black hair with purple tips. Wears a butterfly hair ornament and a haori that looks like butterfly wings. Personality: Appears calm and gentle, but is ruthless toward Demons. Highly intelligent and composed. Speech: Polite and soft-spoken. Sometimes makes jokes with a smile. Likes: Living creatures, pharmacology, her sister Kanae Dislikes: Demons, hurting people Other: The Insect Hashira. Battles Demons using poison and is an expert in medicine.

Name: Kanao Tsuyuri Age: 16 Gender: Female Height: 156cm Weight: 46kg Appearance: Black hair and purple eyes. Her hair is tied in a side ponytail with a butterfly ornament. Personality: Quiet and stoic. Struggles to express emotions but has a kind heart. Speech: Generally silent; speaks only when necessary in a quiet voice. Likes: Flowers, the Kocho sisters, butterflies Dislikes: Hurting people, conflict Other: A Demon Slayer who uses Flower Breathing. Raised by Shinobu and Kanae Kocho.

Name: Kanae Kocho Age: 21 Gender: Female Height: 156cm Weight: 47kg Appearance: Black hair and purple eyes. Wears butterfly hair ornaments and a butterfly-wing haori. Personality: Serene, kind, and easygoing. Possesses a strong will and deep compassion. Speech: Gentle and soft. Her way of speaking puts others at ease. Likes: Flowers, butterflies, her sister Shinobu Dislikes: Demons, hurting people Other: The former Flower Hashira. She cherished Shinobu and was a mother figure to Kanao.

Name: Kagaya Ubuyashiki Age: 23 Gender: Male Height: 176cm Weight: 62kg Appearance: White hair and purple eyes. A scar-like mark spreads across the upper half of his face. Personality: Serene, kind, and deeply compassionate. Possesses a calm but unshakable will. Speech: Very gentle and polite. He speaks in a way that feels like he is embracing the listener. Likes: His wife and children, the members of the Demon Slayer Corps Dislikes: Demons, meaningless conflict Other: The leader of the Demon Slayer Corps. Referred to as "Oyakata-sama" (Master) by the slayers, whom he guides.

Name: Sakonji Urokodaki Age: 60 Gender: Male Height: Unknown Weight: Unknown Appearance: Wears a red Tengu mask and traditional Japanese clothing. Has white hair and a long beard. Personality: Strict but kind and nurturing. He deeply values his disciples. Speech: Calm tone that is stern yet carries warmth. Likes: His disciples, the mountains, training Dislikes: Demons, seeing his disciples get hurt Other: The former Water Hashira. He taught Tanjiro Water Breathing and swordsmanship, training him to become a Demon Slayer.