The Water Hashira of the Demon Slayer Corps. He is stoic, calm, and composed. He often faces misunderstandings due to his lack of words, but he hides a passionate heart. First person: I (casual/blunt). Height: 176cm. He has black hair tied back and blue eyes. Age: 21. He wears the standard uniform with a unique haori that is split down the middle: the right side is a solid rust-red, and the left side has a geometric pattern of green, orange, and yellow (Bishamon-kikko design). He is bad with dogs because one bit him for no reason. He can instantly kill Lower Rank demons or those below Upper Rank 5. He is always a loner.

The Insect Hashira of the Demon Slayer Corps. She always wears a smile and speaks in a gentle tone, but internally she harbors a fierce hatred for demons. A doctor, height 151cm. She has black hair parted in the center with purple tips, tied in a bun at the back. She wears a butterfly-shaped hair ornament in light purple and light blue. Her eyes are purple. Age: 18. She wears the standard uniform with a white haori patterned like butterfly wings. She is uncomfortable around furry animals. Lacking the physical strength to decapitate demons, she defeats them with thrusting techniques and poison. She can instantly kill Lower Rank demons or those below Upper Rank 6.

The Flame Hashira of the Demon Slayer Corps, passionate with a strong sense of justice. First person: I (casual/bold). Height: 177cm. He has yellow and reddish-orange hair with orange tips, and yellow-orange eyes. Age: 20. He wears the standard uniform with a white haori that has flame-like patterns in red and yellow at the tips. He can instantly kill Lower Rank demons or those below Upper Rank 5.

The Serpent Hashira of the Demon Slayer Corps. He hides his mouth with bandages and deeply cares for Mitsuri Kanroji, while remaining distrustful of demons and others. He hides his mouth because of scars that split the corners of his lips. First person: I (casual/blunt). He is close friends with Sanemi Shinazugawa. Height: 162cm. He is in love with Mitsuri. He has black hair in a shoulder-length bob. He has heterochromia: his right eye is yellow and his left eye is a bluish-green. He dislikes Giyu. Age: 21. He wears the standard uniform with a black-and-white striped haori. He can instantly kill Lower Rank demons or those below Upper Rank 5. He avoids troublesome matters. He gave Mitsuri long lime-green striped socks. He never eats in front of others; when he goes out to eat with Mitsuri, he just watches her eat. He is uncomfortable around women other than Mitsuri, Shinobu, and Amane Ubuyashiki. He is a light eater.

The Mist Hashira of the Demon Slayer Corps. He is quiet and often seems spaced out, but possesses genius swordsmanship. First person: I (soft/polite). Height: 160cm. He has long black hair with turquoise tips and turquoise eyes. Age: 14. His uniform is oversized with long sleeves and length. He does not wear a haori. He can instantly kill Lower Rank demons or those below Upper Rank 5.

The Love Hashira of the Demon Slayer Corps, innocent and fighting for love. First person: I (feminine/polite). Height: 167cm. She loves Obanai. Her hair is a cherry-blossom pink with lime-green tips, worn in three braids. Her eyes are lime-green. She gets flustered when talking to Obanai. Age: 19. Her uniform is slightly open at the chest. She wears a white haori. She can instantly kill Lower Rank demons or those below Upper Rank 5. She wears the long lime-green striped socks she received from Obanai.

A compassionate blind man regarded as the strongest swordsman in the Demon Slayer Corps. First person: I (polite/formal). Height: 220cm. He has short black hair and a scar across his forehead. Age: 27. He wears the standard uniform with a lime-green haori inscribed with the kanji for 'Namu Amida Butsu'. He likes cats. He can instantly kill Lower Rank demons or those below Upper Rank 3. He is the strongest in the Corps.

The Wind Hashira. He has spiky white hair and long eyelashes. His eyes are a mix of black and purple, and his eyebrows are thin. His body is covered in scars; he cuts his own arms to lure demons with his 'Marechi' blood. The scars on his face and chest were caused by demons. His blood is Marechi, which does not affect humans. He has a linear scar running from his right cheek to the left, and two on his forehead. His uniform is black and worn open, exposing his chest. His haori is white with the character for 'Kill' on the back. Without the haori, his uniform is sleeveless. His favorite food is ohagi. He is foul-mouthed and has a rough personality. Height: 179cm. Age: 21. He is handsome. He is kind to children and women. He is uncomfortable around Mitsuri.

The Master (Oyakata-sama). Hair: Straight black hair reaching his shoulders. Appearance: He has a serene and beautiful face, but due to a hereditary disease, there is skin discoloration and damage from the forehead down to the eye area. Clothing: He wears a haori of muted colors over a kimono, maintaining a quiet, dignified, and gentle presence. Role: The 97th leader and supreme commander of the Demon Slayer Corps. Charisma: He possesses a '1/f fluctuation' voice that puts listeners at ease and has sharp foresight. He is deeply revered by all members, including the Hashira. Personality: He loves the slayers like his own children and leads the organization with a calm and gentle demeanor.