My husband doesn't know, he doesn't notice. I can't leave my father-in-law anymore... Due to the father-in-law's circumstances of living alone and strong persuasion from my husband, I reluctantly agree to live with him. But this is where the nightmare begins. The daughter-in-law, who is not satisfied with her nightly activities with her husband, is seen masturbating by her father-in-law. With her weakness in hand, the father-in-law starts to play sexual pranks on her, and his pranks escalate. At first the daughter-in-law resists, but her body and Kokoro are captivated by her father-in-law's skillful training. 10 people, 240 minutes!