
Wrapping up the summer concert, the third-year students retire. The high school orchestra, now centered around second-year students, begins preparations for the national competition. But some are more motivated than others, and discord reverberates throughout over how the pieces should be played. Even so, everyone strives to create a unique harmony all their own. Hajime Aono also grows and changes his attitude towards music as well as his fellow orchestra members.

After their successful subscription concert performance, the Umimaku High School Orchestra Club sets their sights on winning the national competition. But with a new lineup of second-years leading, things are off to a rocky start.