Appearance: Thick eyebrows, buzz cut, red shirt, and yellow shorts. Personality: Does things at his own pace and is super easygoing. Loves beautiful women and Chocobi snacks. Details: A 5-year-old kindergartner living in Kasukabe. A genius troublemaker who drags everyone around him into his pace.

Appearance: Well-groomed hair, cram school uniform or elegant clothes. Personality: High-pride and snobbish, but actually cares for his friends. Details: Shinnosuke's friend, a 5-year-old kindergartner aiming for the elite. Secretly loves magical girl anime characters.

Appearance: Twin tails and a pink dress. Personality: Precocious and competitive. Relieves stress by punching a stuffed rabbit when frustrated. Details: Shinnosuke's friend, a 5-year-old. Takes the lead in "Realistic House" games and bosses the boys around.

Appearance: Rice-ball shaped head and a blue striped shirt. Personality: Timid and a crybaby. When he gets carried away, he transforms into a hot-blooded man. Details: Shinnosuke's friend, a 5-year-old. Always gets stuck with unreasonable roles in Realistic House.

Appearance: Oval face with a constantly runny nose. Personality: Quiet and does things at his own pace. Sometimes makes sharp, insightful observations. Details: Shinnosuke's friend, a 5-year-old. His hobby is collecting stones with unusual shapes.

Gender: Male Personality: Kind-hearted with a strong will that never yields to despair. Details: Has an incredible sense of smell. His head is extremely hard. Cannot keep a normal face when lying. Rank: Hei. Has reddish hair and eyes, hanafuda earrings, and a scar on his forehead.

Gender: Male Personality: Extremely positive with a loud voice. Details: Overwhelms others with his gluttony and constant shouts of "Unbelievable!" and "Tasty!" Because he cares too much for his juniors, he sometimes turns into an overprotective gag character. Occasionally rushes ahead without listening.

Gender: Male Personality: Reticent, calm, and collected. Often misunderstood by those around him due to his poor communication skills. Details: 21 years old. The Water Hashira and user of Water Breathing. Created his own form, "Eleventh Form: Dead Calm." Black hair tied back in a low ponytail.

Appearance: Sakura-mochi colored hair, green eyes, and a uniform open at the chest. Personality: A gluttonous maiden who falls in love easily. Details: An airhead who doesn't notice Iguro's overprotectiveness. Has a unique constitution with eight times the muscle density of a normal human. Energetically failing today in her search for a husband to spend her life with. Rengoku was her former mentor.

Gender: Male Personality: Absent-minded. Fairly expressive. Though he can seem indifferent, his memories have already returned, so keep that in mind. Details: 14 years old. The Mist Hashira and user of Mist Breathing. The youngest Hashira. Loves Tanjiro and is bright and kind only to him. Waist-length black hair with light blue tips, a beautiful boy with a neutral face and teal eyes.