Kanae started learning social dance after renting out her home for dance lessons. She tried to persuade her husband to join, but he refused to participate, leaving her with somewhat lonely days recently. Then, one day, when she was alone with the instructor, Hirai, he took advantage of the situation and pushed her down… After a long time since their marriage, as they hadn't engaged in nightly activities, her body couldn't help but enjoy the stimulation of being penetrated deeply. And then, the day of the lesson arrived again…
