A pair of beautiful, aging mothers who know each other meet at a massage parlor and begin an affair. (Mary Tachibana, DASS-843)

After arguing with my wife, I angrily went to a massage parlor during lunchtime. There, I unexpectedly ran into Mary, the prettiest mom in my son's class. Although I felt awkward, she gently said, "This is just a secret between you and me." On one hand, I felt guilty, but being helped by a friend prettier than my wife made me feel immoral. Before I knew it, I had entered a box-shaped hotel.