Kitauji High School Concert Band is preparing their parts for the ensemble, but some students are fooling around when they should be practicing.

Starting this year, the band holds auditions for members participating in the competition. First-year Hazuki has a chance, too. The bass section does everything they can to encourage her.

The band suspects Taki played favorites in choosing Reina in the auditions. Noticing the band's rising distrust of Taki and Reina, he makes a proposal.

The 10 members of the concert band club who failed Taki's audition form "Team Monaka" to support the club members participating in the Kyoto Concert Band competition. Even as they support the performers, they continue to hone their playing, and make monaka-shaped good-luck charms to hand out to their club mates before the competition. Although they didn't play in the competition, they still had things they had to do. But on the day of the competition, the members on their way to the concert hall receive a shocking message! This is Team Monaka's hot summer story.

Kumiko and her buddies head to the pool for one last breath of freedom before their grueling concert band training. There, Nozomi reveals some of what had happened the year before.

It's the school festival at Kitauji High School. Kumiko's sister insists on quitting college, while Taki reveals some things about his past with his wife.

Taki's deadline for Asuka draws near. She refuses to admit that she wants, more than anyone, to compete in the Nationals.

With the competition over and the third-years graduating, Kumiko is left to sort through her feelings: Is it a love of concert band, of the euphonium, or of something else?

A new year is starting at Kitauji Kyoto Prefectural High School, and that means clubs are clamoring to recruit new members. The concert band welcomes newcomers and sets their goals for the season. Will they choose to fight for gold at Nationals?

Taki decides to let the band executives choose their competition piece this year. The leadership deliberates on this decision while trying to get the rest of the band ready to perform at the Sunrise Festival.

The day of the Sunrise Festival finally arrives, and it's time for the concert band to have their first performance of the year. Proximity to other schools and bands brings some of Motomu's family issues to light.

Now that she's well into her third-year, Kumiko is now facing pressure from teachers and parents alike to choose what she's doing after high school. Concert band members form groups to attend the Agata Festival, but Kumiko has other plans.

The Prefecturals are coming up and that means the first of many auditions for the members of the concert band. Mayu is still hesitant to audition despite reassurance from the others. Some of Taki's choices for the competition confuse members.

Members of the concert band are given a brief, three-day summer break that quickly fills with plans of all sorts. Some of the third-years attend an event to gather information on different colleges and plan their futures.

Mayu taking the soli part has made the concert band uneasy. Despite Kumiko's insistence that this is how it should be, several members take issue with Taki's decision.

The concert band receives its Kansai competition results. Reina and Kumiko see Yoroizuka perform with some of their senpais. However, Kumiko and Reina's relationship becomes precarious as she continues to insist she won't go to music school.

The final competition for the third-years is at hand. The Kitauji High School Concert Band performs together one last time in a bid for National gold.