The daughter-in-law, who was seen masturbating with a rope by her elderly father-in-law, is forced to do training-like things such as chewing kisses, spanking, and physical service in the bath, such as washing her body. However, the daughter-in-law does not show any signs of displeasure and is happy to accept it. The two of them escalate and get excited by their bold actions even near their husbands, and finally knock on the forbidden door.