Kirin High School of Art has been taken over by Oz Entertainment because of financial bankruptcy. Oz Entertainment then transfers over its own idol stars to Kirin High to avoid a law requiring under age entertainers to study for a set time. Competition then brews between troubled students at Kirin High School of Art and then newly transferred idols from Oz Entertainment.

Shin Hye Sung (Kang So Ra) enters Kirin High School of Art with a high written exam score, but poor performance score. She then meets fellow students Jin Yoo Jin (Jin Woon) and JB, who makes her realize how fun music can be. Jin Yoo Jin acted when he was a child. Now, he is a troubled student dreaming of becoming a rock star. He attempts to cure his pain caused by his parent’s divorce through music.