Mr. and Mrs. Yuji who returned to their wife's parents' house. Yu, the mother-in-law who greeted me, was a young and beautiful woman who was the second wife of her father-in-law. Yuji was worried about the jerky relationship between his mother-in-law and his wife, but when he heard that, his wife was in a bad mood. That night, when Yuji went to the kitchen, Yu was having an evening drink alone. Yuji hears about the relationship between his wife and mother-in-law. Gradually, the two who talked about night life got excited and crossed the line with drunken momentum. After that, the two people who pile up their bodies ...