Chanyeol is living with two identities one as the head of the gangs in the underground world of Korea and the other I'd as worldwide superstar he is the only mafia head that has his clubs open for rap competition but one day he sees the most unexpected persona as a finalist on the stage. Baek a little innocent boy pursuing his dream od f being. A doctor ha always try hard and he is so stubborn that accepts no help from others want in everything his own way.chan after meeting that boy  follows that unknown and eventually finds himself in love with him but being in love with mafia leader ain't no easy job baek goes through so many difficulties to finally fit in the world of underground but one day