At Shirahamazaka High School, a special recital is held annually, allowing music students to showcase their talents before professionals and other distinguished guests. Third-year student Konatsu Miyamoto is eager to perform in her final high school recital, but the vice principal has banned her from participating due to her mistakes the previous year. Konatsu devises a new strategy to take part: rather than joining the official choir, she decides to establish her own singing club with friends. However, this proves more difficult than anticipated. For one thing, her friend Wakana Sakai has abandoned singing, and Konatsu requires more than just two members. With only a month remaining until the recital, will Konatsu manage to recruit enough members for her club and be prepared to sing at one of the school year's most significant events, thereby graduating without regrets?