Dae-Gun Kwon is a high school dropout who used to work in a convenience store. After beating up some miscreants during his shift at the convenience store it is revealed that he was the leader of Incheon area which was said to be in the age of blood, was wiped in just a week by him alone. He is then later selected as the lead of a project called 'Iljin in charge of Iljin' where he was going to be used to tackle and stop the problem of bullying in Geumryong High School.