Kanade and Kyoya overcome their anxiety and practice hard to challenge the semifinals. Under the strict guidance of Ritsu, the four of them push forward towards the semi-finals. On the other hand, Jinnan High School also stands on the stage with all their might to grab the victory from a certain incident in the former tournament. The overwhelmingly popular Jinnan High School Orchestra Club, headed by Togane, the director, makes the whole venue excited with a splendid performance. We challenge the battle that even the attacking Star Sou Gakuin can't lose.