One day, Saiharu finds her former boss, Kagawa, at the construction site in front of her house. Kagawa, who has failed in his business with Saiharu, who has been in contact with him as before, can't seem to calm down. They break into the house and forcefully push him down. Saiharu, who had almost no activities at night, was repeatedly squished by Kagawa's pushy piston. Even though I was saddened by the fact that I was fucked by a man other than my husband, the pleasure I felt in my body couldn't be easily erased... At that time, Kagawa appears in front of her again...