As a college student and still a virgin, I was able to live alone, which was my dream. - On the day of moving, when he goes to greet people, he finds out that a defenseless and bewitching married woman, Kana-san, lives in the next room. - From that night onwards, it became a daily routine for me to masturbate while listening to Kana's moans coming through the thin walls. - A few days later, the conversation turned to muscle training, and when I told her that it was my hobby, Kana also seemed to want to train her body, so I ended up giving her some guidance...