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.