Jaemin was the leader and boss of the Mafia Gang. Though, he hid his secret organization because of his public image as a car racer. A popular and well-known one. He was known for his intimidating and charismatic presence. Everyone has known him for being blunt and cold. But, what if he met his underboss's sister. Who seemed to be his troublemaker. But what if she became his responsibility? A girl that can lead him to deep trouble, his chèrie..