Park Sae Roy falls into trouble on his first day of high school after punching Jang Geun Won, who had been tormenting a classmate. Jang Dae Hee, Jang Geun Won's father, is the CEO of the restaurant firm Jagga and Park Sae Roy's father. Park Sae Roy's father gets sacked and eventually expelled from school for refusing to apologize for hitting Jang Geun Won. Soon later, Park Sae Ro Yoy's father dies in a horrible accident caused by Jang Geun Won. Park Sae Roy, heartbroken and enraged by his loss, beats Jang Geun Won savagely, earning himself years in prison. Park Sae Roy creates his own restaurant in Itaewon, Seoul, in order to exact revenge on the Jagga corporation and the Jang family.