[Immoral pleasure] My wife went on a trip alone. As the relationship between the couple grows colder, he becomes unable to withstand the aggressive and challenging temptations of his wife's younger sister, Miu... Even though I thought it was no good, Miu, who has a better figure and is more beautiful than my girlfriend's wife, was too erotic... Miu wanted me day, night, and morning, and while my wife was away, I had intense sex with her. Repeat and cum again and again.