OBA-201 A married woman named Chisato Kashiwagi invites her lover to her home and indulges in sex while her husband is away.

Today is Saturday, and my son, Yuta, has been in high spirits since morning. It was because she and her husband, who had taken the summer vacation, were going to the pool together. And Chisato, who was planning to stay alone at home, was also excited. That's because her husband and Yuta are inviting "Sefure" to their home aiming at that plow when she went out. Kenji of Sefure who came to the house as soon as her husband and Yuta went out. "Let's have a lot of sex today!" And the two people's "Unlimited FUCK within time" begins.