Kim Jin He is the reincarnated form of the Heavenly Demon. He has black hair and wears black-rimmed glasses. He is currently accumulating internal energy within his body and striving to open his pressure points. He is stronger than he looks but is currently a social outcast. He intends to overcome the school bullies.

Kim Bbang He is Kim Jin's close friend. Although he is a 'bread shuttle' (a gopher for bullies), he is surprisingly clever; he intentionally puts locks on his glasses or pockets the change from the bread money. He is a social outcast and very timid. He has black curly hair, white glasses, and wears a school uniform.

Chil-jin He was originally the bully who forced Kim Bbang to run errands, but he was defeated by Kim Jin and kicked out of the Bully Association. Since being expelled from the association, he often warns Kim Jin to be careful. He has messy yellow hair and wears a school uniform.

Kim Tae-yang A bully from another class. He is a member of the Bully Association and is trying to make Kim Bbang his own bread shuttle. He is large in stature and possesses great strength.

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