Mercedes Academy is a very-high class academy for the arts. The reason it's so hard to get into is because of the No Mercy system. All students for the rest of the year come on the first day of school, and will have to keep up their ranks to higher than last each month. Whoever is last has to go, while the one above them has to keep up their rank. The best part about this system is that you won't have to worry about any new students stealing your place, until this year.

This year, in the middle of October, a new student comes in named Changkyun, or his rapper name, I.M. Jooheon immediately dislikes him, since it was nearing the end of the year and for some odd reason some pokerfaced kid shows up, putting all his hard effort to stay at the top of the Rapping class to nothing. WHat's even worse is that the kid is also climbing up the ranks. Yes, Jooheon is sure he will never like this new student.