The innocent boy helps his neighbor exercise at the gym and the ending

As a college student, I was still a virgin, and I would live alone, something I had longed for. On moving day, when I went around to say hello, I discovered that a married woman, Kana, was living in the room next door. From that night on, my daily routine was to masturbate by listening to Kana-san's cries that I heard through the thin wall. A few days later, the conversation became about muscle training, and when I told him that I was a hobby, Kana-san seemed to want to train his body and instructed …

The innocent boy helps his neighbor exercise at the gym and the ending