To attend a hometown alumni reunion, my wife Yuri went back to her parents' place. Tetsu, who hadn't been alone at home in a long time, was planning to enjoy his freedom when suddenly, his wife's sister Jumi showed up. Jumi had previously been consulted by Yuri about some troubles and told Tetsu she would give him a piece of her mind, but in reality, she intended to satisfy her own sexual desires. Unaware of Jumi's true intentions, Tetsu...
