The beautiful wife Tsunobu returned to her husband's parents' house. Because her father-in-law was seriously ill, she came to take care of him. One day he was well and we were about to leave when we suddenly heard him crying because we discovered that he was sick. My wife was having an affair and feeling heartbroken, I stayed to comfort her and enjoyed a few glasses of wine with my father-in-law, but after a while I passed out and had no strength in my arms or legs. When I woke up, I felt helpless at the scene of my father-in-law making love to my mother-in-law. I was heartbroken and my father-in-law seemed to be irritating my mother-in-law and I couldn't do anything but endure.