When they were middle school students, Aihara Eiji and Bessho Naohiko attended the same school, and they were best friends. One day, Eiji’s childhood friend Shiosaki Izumi transferred to their school. Eiji had feelings for Izumi, but he never told her how he felt. Naohiko though confessed his feelings to Izumi and they became boyfriend and girlfriend. Now, all 3 are first-year high school students and attend the same school. There, they meet Fujimura Koharu, who begins to have feelings for Naohiko, Senami Taichi, who is a member of a band, and Ikezawa Mizuho, who is a literary girl and likes Eiji.