Satomi is a typical Showa wife who takes three steps behind her husband. It's been 5 years since her marriage, and she's starting to feel lonely even at night as a couple. On the outside, she pretends that her marriage is harmonious, but she does her best to suppress her simmering sexual desire. One day, while she was masturbating in the kitchen in the middle of the day, she was spied on by a rice vendor who had come to ask for help! Satomi managed to stay there.