Ubuse Chiharu

A junior two years below the protagonist at the academy he attended. A lively, inventive girl with bouncy, shoulder-length hair.
Watching her parents passionately play volleyball when she was young, she aspired to follow the same path and resolved to enter an academy known for its strong volleyball program.

At the academy, she admired the protagonist, who led her club as captain despite the boys' and girls' teams being separate, and developed feelings for him.

She has since retired as a third-year student but occasionally drops by the club activities. She has secured a recommendation for admission to a junior college.

As a student, she's not officially part of the moms' volleyball team. However, when they were short on players for a match, she was urgently drafted as a temporary helper.

Perhaps due to losing her father at a young age, she has a slight father complex. She seems to see something of her father in the protagonist, who plays (or played) for a work team just like her father did.