I was a lonely college student living alone, and I spent all my time studying and working part-time. That day, as I was finishing up my homework, I heard a commotion outside. It seemed like someone was moving into the room next door. After a while, the doorbell rang, and a married woman from the next door house came to say hello. When I looked up, I saw that it was Ms. Sakurai, my private tutor from my student days... When I met her again after a long time, she was seductive and defenseless. Furthermore, I could hear the couple having sex from the other side of the thin wall, and I began to think of her as a woman...