The National Student Music Competition has finally started. Surprisingly, it was Shiseikan High School that was supposed to play in the third stage. Kana, who was chosen as the second violin, is anguished to fight against the members of Shiseikan High School who have had a good time at Bodhiju Dormitory. On the other hand, Shiseikan High School stands ready to give everything to this competition. In a battle that cannot be lost, the performance of Shiseikan High School's whole body resounds.