空井 律

Third-year student and a senpai of the protagonist. Student council vice president.

She is affectionately called "Ricchan-senpai," and is both admired and feared. Though she's caring and attentive, she also possesses a strict side. She is close friends with the student council president, Misaki, and in private, she helps cover for her clumsy side.

She is the chairman's cousin, and firmly believes that it's important for the protagonist to achieve results.

She wants to have a stronger presence, believing that larger breasts will help.

Bust Size: 94cm K-cup -> 102cm N-cup