Iori and her husband have been married for a long time. Recently, her husband has been drinking constantly, leading to frequent arguments between them. Today, the younger couple of her husband's family came to visit and witnessed the discord between the older couple. Yuki, Kentaro's wife, suggested that both families go on a camping trip together and even exchange spouses to make the trip smoother. Iori's husband seemed reluctant but agreed verbally to show his indifference towards his wife. Iori, feeling angry, reluctantly agreed as well. And so the camping trip was decided. Upon arrival, Iori, wanting to tease her husband and Kentaro, playfully joked with the younger man all day. In the evening, due to the spouse-swapping arrangement, Iori ended up sharing a tent with Kentaro. When she woke up in the morning, she found him hugging her, mistaking her for Yuki. However, the soft touch of his arm, the sweet fragrance, and Iori's beautiful face made Kentaro unable to resist. He continuously had sex with her while Iori's husband and his wife were outside preparing breakfast. Kentaro's large and vigorous penis conquered Iori throughout these two days, as she allowed him to have sex with her repeatedly. As for Iori's husband, being away from his wife made him realize his foolishness. He truly loved Iori and decided to change for her happiness. He prepared a delicious breakfast to show his feelings and went happily to Iori's tent to wake her up, only to discover his wife naked in the arms of the younger man...