On the first day of attending his new high school, Park Sae Roy gets into trouble after punching Jang Geun Won, who had been bullying a fellow classmate. Jang Dae Hee, the father of Jang Geun Won, is the CEO of the restaurant business Jagga, and the boss of Park Sae Roy father. After refusing to apologize for punching Jang Geun Won, Park Sae Roy father is fired, and he is ultimately expelled from school. Soon after, a tragic accident, caused by Jang Geun Won, takes place and Park Sae Ro Yoy’s father dies. Heartbroken and angry at his loss, Park Sae Roy viciously beats Jang Geun Won, earning himself time in prison. Deciding to take revenge upon the Jagga compony and the Jang family, Park Sae Roy opens his own restaurant in Itaewon, Seoul.