The only flaw of actor Lee Wooyeon, who is on the road to success without facing a single slump, is that his manager never lasts. With a time period of three months to observe him as a manager. Choi Inseop becomes Lee Wooyeon’s manager in search for revenge. He was not the Lee Wooyeon who was loved by people, but another Lee Wooyeon. Inseop had to uncover the truth. Because he had made a promise.