Iori and her husband have been married for a long time, recently her husband often goes out drinking and the two often have conflicts. Today he went to visit her husband's junior couple, Yuki - Kentaro's wife, when she saw the difference between the old couple, she immediately suggested that the two families go camping together, in addition, they swapped husbands, which also changed and the trip went smoothly. Iori's husband seemed reluctant, but because he wanted to prove that he didn't care about his wife, he reluctantly agreed, Iori was angry and agreed to comply. So the camping trip was decided like this. When they arrived, Iori wanted to play a prank on her husband and Kentaro was really brave, so Iori laughed and joked with him all day. At night, because it was a husband swap, Iori slept with Kentaro. When she woke up in the morning, she found him hugging her, she probably thought it was Yuki so she did that. But when he woke up, the gentle feeling from Iori's arms, gentle scent, and beautiful face made Kentaro unable to bear it anymore. He continued to pull her even though Iori and his wife were preparing breakfast outside.