A record of several days of being raped by his boyfriend's best friend, who was close to him like a childhood friend.

It's been seven years since Ayaharu dated her current boyfriend. Since we first started dating, my boyfriend's best friend, Yuta, was always by my side. At some point, it became common for the three of us to be together. Ayaharu unconsciously began to show off her defenseless appearance, which only her boyfriend would ever see. However, for Yuta, who had been secretly thinking about Ayaharu for seven years, it was an extremely cruel stimulus.