Lutheran High School of clear is a humble girl, achievement in general there is no lofty ideals, Confessions of a failed let her quickly become campus hot search list the big loser, and friend, Cai Chun and plum also because their problems become depressed. An upcoming echo of the band contest so that they three people raised the fight, want to stand on the stage to prove himself. The emergence of transfer students He Siyu disrupted the three girls, he not only by the threat of force to join, also became the coach of the young band! In order to prepare for the preliminary round, they launched a devil training, did not expect clear due to excessive exercise lead to voice, deputy singer Cai Chun also because of stage fright is unable to face the audience. Finally entered the preliminaries, but opponents "supersonic band" plot, in the preliminary round of the day...