Three Karasuno second-years—Sakura, Yukiko, and Mio—find their after-school lives turned upside down when they grow close to the volleyball team’s third-year trio. Soft-hearted Sakura catches Sugawara’s warm smile, quiet Yukiko becomes Asahi’s gentle comfort, and bold Mio sparks with Daichi’s steady strength. Between crowded hallways, practice sessions, and shy glances in the gym, the girls discover that falling in love can be just as exhilarating as a Karasuno match.