Audrey.

Yuko is a high school girl living in the suburbs. She had feelings for Toyama without telling her best friends Eri and Shiho. However, in the fall of her senior year of high school, Eri begins to express her “interest” in Toyama. In order to further research Toyama's tastes, Yuko ends up going out with him on the promise that she will stay with him until the school festival.