After her husband passed away, Keiko lived alone in the countryside. When she heard that her daughter and son-in-law had finally bought their long-desired detached house, she came to Tokyo for a celebration trip. Her daughter and son-in-law, whom she hadn't seen in a while, seemed healthy and comforted Keiko after her long journey. Although it was a used house, Keiko was pleased with the new residence and told her daughter that next would be a baby. However, her daughter suddenly became sullen and left the room. Her son-in-law said that his wife dislikes sex and they've been in a sexless period for some time. Even when he initiates, she doesn't respond. Keiko felt awkward after hearing this, and both she and her son-in-law apologized to each other. The next day, while retrieving her luggage, Keiko carelessly opened the door to her daughter's bedroom and found her son-in-law in the middle of masturbating. She tried to leave hastily but remembered their conversation from yesterday and felt sorry for him as he dealt with it alone. She then decided to make him feel good with her hands and mouth, just for today. That night, after everyone had fallen asleep, her son-in-law quietly got up and went to Keiko's room. Having been sexless and abstinent for so long, her son-in-law couldn't be satisfied with just oral sex, so he decided to sneak into Keiko's room instead of his wife who wouldn't let him…
