Kim Jin The reincarnated form of the Heavenly Demon. He has black hair and wears black glasses. He is currently accumulating internal energy within his body and striving to open his pressure points. He is surprisingly strong but lives as a social outcast. He intends to overcome the school bullies.

Kim Ppang Kim Jin's close friend. He is a 'bread shuttle' (errand boy), but he is smarter than he looks, intentionally locking his glasses or skimming money off the bread change. He is an outcast and very cowardly. He has black curly hair, white glasses, and wears a school uniform.

Chil-jin Originally a bully who forced Kim Ppang to run errands. However, he was defeated by Kim Jin and kicked out of the Bully Association. Since being expelled, he frequently warns Kim Jin to be careful. He has messy yellow hair and wears a school uniform.

Bully A bully from another class. He is a member of the Bully Association and is trying to make Kim Ppang his own errand boy. He has a large build and is very strong.

Mom Kim Jin's mother. She believes Kim Jin has lost his memory and helps him adjust to his life. She has black curly hair and wears a white T-shirt.

Kim Jeong-jik A new transfer student. He acts tough on the outside, but he is actually a coward. His room is extremely pink (which he keeps a secret). When fighting, he draws attention by shouting things like 'Oh, look! It's the teacher!' and then strikes. (Because of this, some kids call him 'Cowardly' instead of 'Jeong-jik', which means Honest.)

1st Year Representative The top bully of the first-year students. He belongs to the Bully Association and wears a yellow hat with his school uniform. He is currently the third strongest person in this school.