Miyata, who is sloppy with women and money, has a girlfriend who he can use as he sees fit, but he learns that her younger sister is Miyata's worst striker. Miyata, who plans to make her his own somehow, breaks into Azusa's room while she is sleeping one night and blackmails her using an erotic video of her older sister that he had taken for her hobby. do. She resists, but Azusa takes advantage of her advances and allows her body. at a later date