True Blue

Aoi Kanzaki is a school idol who is in love with her childhood friend Akihito Kurusa. They are always together, even going to school in the morning.

However, their idyll is disrupted by physical education teacher Yuichiro Shoda, who begins to show interest in Aoi. He forces her to do things she doesn't want to do. Every day, Aoi realizes that she's getting more and more used to it. In the end, Yuichiro takes Aoi's virginity right in front of Akihito.