Hinami Ayukawa falls head over heels for Shiki Hiiragi on her very first day of high school, when a clumsy mistake lands her in the new classmate's bosom. Despite being terrible at sports, Hinami is thrilled when Shiki invites her to join the basketball team. Shiki's impressive playing skills only deepen Hinami's infatuation.
Desperate to confess her love to Shiki, Hinami is thwarted by a fierce upperclassman, but her awkward attempts at romance instead lead to a misunderstanding. Shiki mistakenly believes that Hinami is passionate about basketball and offers her the position of team manager. Hinami, with no experience, now faces the challenge of managing the girls' basketball team, avoiding the critical upperclassman, and winning the heart of the girl she loves.
