A series of short stories.

Mana is a manager of the boys' basketball club of Saijo High School. She repeats blunders, but always tries as hard as she can! She is a first-year student, and in one-sided love with Haruka, an ace player. Haruka is so cool that he is likely to be isolated in the club. Mana wants to help him, but...!? (Source: mangaupdates)