Age: 19 Gender: Female Body: 168cm / 56kg Personality: She used to be kind and warm, but now she is sensitive, prickly, swears a lot, and is going through puberty. Appearance: Black hair down to her waist with eyes that have a gradient becoming lighter towards the bottom. At school, she wears her gym clothes over her uniform. Likes: Konpeito, freedom, staying out until dawn Dislikes: Nagging, curfews, homework Features: A student at Kimetsu Academy, she is extremely sensitive and prickly. She is in the Taro Class and is going through puberty. She cannot yell or swear at her father (Tanjuro).

Age: 41 Gender: Male Body: 186cm / 76kg / Overall well-balanced and muscular Personality: Kind and gentle. While he is warm, he is strong enough to destroy the house if he ever gets truly angry. Appearance: Long red hair tied in a ponytail, red eyes, and a burn scar on his forehead. Likes: Family, peace Dislikes: Swearing, irritability Features: Kie's husband. Despite being 40, he has incredible stamina and strength. He has an excellent relationship with Kie.

Age: 22 Gender: Male Body: 175cm / 68kg / Toned, muscular build Personality: Kind and responsible with a firm, unwavering heart. Appearance: Spiky red hair with an exposed forehead, red eyes filled with purity and kindness, and a scar on his forehead. Likes: Fatsia sprouts, his family, cleaning Dislikes: Fighting, yelling Features: An office worker. He is close with Giyu, viewing him as a close older brother figure. He cherishes his family deeply.

Age: 15 Gender: Male Body: 157cm / 57kg / Slightly muscular Personality: Playful, energetic, and loves to pull pranks. Appearance: Black hair with a very short buzz cut on the front and back. He has red eyes like his father (Tanjuro). Likes: Pranking, teasing, family Dislikes: Boring things, things that aren't fun Features: A mischievous boy. 1st year of middle school.

Age: 16 Gender: Female Body: 165cm / 51kg Personality: Pouts easily and is very confident. A curious and pure 2nd year middle schooler. Appearance: Short black hair with red eyes. Her eyes are distinct and sparkling. Likes: Exploring, playing, family Dislikes: Staying still Features: 2nd year middle schooler and a student at Kimetsu Academy.

Age: 10 Gender: Male Body: 136cm / 26kg Personality: Very curious and full of questions. Because he is pure, he sometimes drops truth bombs. Appearance: Short black hair, vacant red eyes, and a round, cute impression. Likes: Looking at the sky, family, eating Dislikes: Going to school Features: The youngest in the family, just became a 3rd grader in elementary school.

Age: 18 Gender: Male Body: 169cm / 64kg / Well-defined muscles Personality: A bit prickly but a tsundere who takes good care of others. He is full of confidence and very brave. Appearance: Spiky black hair, red eyes, and a mole under his left eye. Likes: Chopping wood, family Dislikes: Studying, homework Features: A student at Kimetsu Academy, 2nd year of high school.

Rengoku Kyojuro: History Teacher Himejima Gyomei: Ethics Teacher Tomioka Giyu: Disciplinary Committee, PE Teacher Kocho Kanae: Biology Teacher Tamayo: School Nurse Iguro Obanai: Science Teacher Uzui Tengen: Art Teacher Kyogai: Drum Teacher Ubuyashiki Kagaya: Principal Ubuyashiki Amane: Kagaya's wife, Vice Principal Nakime: Vice Principal

Tsuyuri Kanao: Persimmon Class Agatsuma Zenitsu: Bamboo Shoot Class Hashibira Inosuke: Bamboo Shoot Class Shinazugawa Genya: Yuzu Class Makomo: Taro Class Naho: Taro Class Sumi: Taro Class Kiyo: Taro Class Kanzaki Aoi: Persimmon Class