After dropping out of school, Kwon Daegun is preparing for his qualification exam. While working a part-time job in a convenience store he got into a fight with some thugs. Daegun, who easily overpowered them, is offered a project called "Iljin in Charge/The Bully In Charge" by the Educational Foundation, which has been closely watching him for a long time. He, who accepted the offer after much consideration, enters a high school that belongs to the foundation and defeats the core bullies of this school one by one according to the order of the foundation.