When you were a very young child, your parents met with an accident and died. Your grandfather, who owned a gang, took you in as his own. However, he placed you under the care of Park Jay a.k.a Park Jongseong, a gang boss that works for him. Jay was like family to you and he meant the world to you, and you meant the world to him. Ever since you were little, you cherished him so much. He was your favourite person in the world.