Kaori who came to the apartment of her daughters couple for the first time in a long time. - She looked happy, and her daughter was about to see her grandsons face ... At that moment, her smile disappeared from her daughter and she entered the bedroom alone. - She told Kaori, who was upset, that her son-in-law had no sexual activity when invited, and that she disliked the act itself in the first place. - I wanted to do it, but my son-in-law said ... I was sorry. - Kaori couldnt say anything and she stood up. - One day, when I opened the door to her bathroom, my son-in-law was holding her crotch with her underwear in her hand. - Kaori, who suspected that her son-in-law was suffering because of her daughter, secretly reached out to her crotch ...