A sex movie of an adulterous affair between a girl named Iori Nanase and her husband who have been married for a long time. Recently, her husband has been drinking constantly and the two often quarrel. Today, her husband’s junior couple came to visit. Witnessing the discord between the senior couple, Yuki – Kentaro’s wife immediately suggested that the two families go camping together, and also swap husbands and wives to make the trip smoother. Iori’s husband seemed reluctant, but because he wanted to show that he didn’t care about his wife, he boldly agreed. Seeing that, Iori got angry and agreed. So the camping trip was decided like that. When they arrived, because they wanted to annoy her husband and Kentaro was really gallant, Iori laughed and joked with him all day. At night, because they were swapping husbands and wives, Iori slept with Kentaro. When she woke up in the morning, she found him hugging her, he probably thought she was Yuki, so he did that. But when he woke up, the soft feeling from his arm, the gentle scent, and Iori’s beautiful face made Kentaro unable to bear it anymore. He kept fucking her even though Iori’s husband and his wife were outside preparing breakfast. Conquered by Kentaro’s huge cock and his strong, healthy body, for the past two days, Iori kept letting him fuck her over and over again. As for her husband, when he had to be away from his wife, he realized how stupid he was. Iori’s husband really loved her, he decided to change to bring Iori happiness. He cooked a delicious breakfast to let Iori feel his heart, happily went to Iori’s tent to wake her up, only then did he discover that his wife was naked in the arms of her junior…