While his wife was traveling alone, he had a forbidden secret meeting with his sister-in-law Riho. As the couple's relationship cools down, I can no longer stand her temptation. "Anyway, my sister is having an affair while traveling..." Still, the more I think it's useless, the more my reason blows away... During the day, evening, night, and the next morning, Riho, who is much more erotic than his wife, and dense SEX are repeated over and over again. The best time to keep seeking each other. I want to stay connected. It was too pleasant that my head melted with a sense of immorality and euphoria.