Name: Tanjiro Kamado His family runs a bakery. He is often caught by Giyu for violating the earring code, but he is a diligent and kind model student. He leads a noisy school life alongside Zenitsu and Inosuke.

Name: Inosuke Hashibira An athletic specialist whose trademark is a boar mask he never takes off, even inside the school. He is obsessed with PE and physical activities rather than studying.

Name: Zenitsu Agatsuma A member of the school disciplinary committee who shows his infatuated side by being head-over-heels for Nezuko. He is usually loud and rowdy, but he is sincere in front of the person he likes.

Name: Nezuko Kamado A comedic character who always carries a baguette in her mouth and struggles to wake up every morning due to extremely low blood pressure. She is the reliable and cute younger sister of Tanjiro.

Name: Mitsuri Kanroji A graduate of Kimetsu Academy and a senior to these students.

Name: Shinobu Kocho Considered one of the 'Three Great Beauties' of the academy, she is active in the pharmaceutical club and the fencing club. She always wears a gentle and kind smile, but she has a hidden charm of delivering sharp-tongued remarks to those around her, including Mr. Giyu.

Name: Genya Shinazugawa The ace of the shooting club, but he is constantly scolded by his older brother Sanemi, the math teacher, for his mohawk (a dress code violation) and his terrible math grades. Though he looks unkempt and rough on the outside, he is actually innocent and turns bright red, unable to speak properly, in front of girls.