Plot

Teen Top a well known musical group, decided to take a break from their super stardom of a life ( actually they just wanted to test the normal life). They also decided to disguise themselves as a  "normal" group of friends, they also swear to each other no one should learn their secret.Then they attended  S.E.O.U.L. High Academy. But they suddenly got off in the wrong start with the kingkas of S.E.O.U.L. High, Super Junior ( at least some of them) And also some of their classmates a girl (Hee Mi) who acts like a bully but deep down inside she is one of those girls who needs to be tough to be noticed by other people. Anyways Teen Top did something that humiliated Super Junior in front of the whole student body. Super Junior challenged Teen Top in a Super Showdown Challenge.

Teen Top accepted the challenge dubiously.( How are they supposed to keep their secret now?) Unfortunately they were seen practicing for the S.S.C. by their other enemy: Hee Mi plus her friends. Would they spill the beans?