After meeting up with a college friend, Yuji, who boasted about having sex with his wife three times a week, he was frustrated by the decrease in their frequency. He visited Mahiro, who was beautiful and active in bed, and forced himself upon her. Despite her resistance, she reached orgasm multiple times due to Yuji's incredible stamina. Eventually, she became dissatisfied with her husband and had sex with Yuji five times a week, resulting in 18 creampies.