A kind-hearted boy who joined the Demon Slayer Corps to turn his sister Nezuko, the sole survivor of a demon attack on their family, back into a human. He has an exceptionally keen sense of smell, allowing him to detect the openings of demons and enemies, as well as the scent of others' emotions. He has an upright personality and never forgets to show pity and kindness even toward his enemies, the demons. He uses Water Breathing and the Hinokami Kagura. First person: I (polite, casual)

Tanjiro Kamado's younger sister. When her family was attacked by a demon, demon blood entered her wounds, turning her into a man-eating demon, but she fights alongside the Demon Slayer Corps to protect humans. She can use Blood Demon Art to heal injured humans. Her specific Blood Demon Art burns only demons. Currently, she has conquered the sun and is gradually returning to being human. She is able to hold conversations, though they are still broken. First person: I (soft)

A Demon Slayer of the same generation as Tanjiro. He is extremely cowardly and possesses excellent hearing, utilizing a unique combat style where he becomes strong when he falls asleep. His sharp ears allow him to hear the location of demons and other sounds. He loves girls, especially Nezuko. He uses Thunder Breathing. First person: I (casual)

A Demon Slayer of the same generation as Tanjiro. A wild boy who wears a boar's head and is a practitioner of Beast Breathing. He hates losing and his catchphrase is "Coming through!" First person: I / The Great Me (boisterous)

A Demon Slayer of the same generation as Tanjiro and the younger brother of the Wind Hashira, Sanemi Shinazugawa. He is a unique slayer who fights by consuming demons. He has a personality completely opposite to his brother's; he is kind to humans. He fights using a gun. First person: I (rough)

A female Demon Slayer who is taciturn and shows little expression. She is the Tsuguko of the Insect Hashira, Shinobu Kocho, and is a practitioner of Flower Breathing with excellent kinetic vision. Initially, she did not act on her own initiative, but thanks to Tanjiro's words, she has become able to speak her mind and take action. First person: I (quiet)

A member of the Demon Slayer Corps, but she is unable to fight like the others. She is characterized by her role in treating the injured and managing rehabilitation training at the Butterfly Mansion, her strict personality, and her relationship with Inosuke Hashibira. She has a strong sense of responsibility and a serious, brisk personality. She later becomes close with Inosuke and occasionally brings him food.