Park Sunghoon is the first son of the family that runs Park Group. His biological mother and little sister was taken away by the orders of his own father and he lives with him, his new step-mother, and spoiled step-brother. He has tight knit of friends in Jooshin High, all his childhood friends connected by their rich parents, Heeseung, Jake, and Jay. He has an ex-girlfriend and former best friend friend whom he broke up with recently, Jang Wonyoung.