Reiko went on a hot spring trip with her beloved son. To outsiders, they might seem like a close-knit mother and child, but in reality, they were in a forbidden relationship, and this trip was for them to indulge in their love at the hot spring. Upon arriving at the inn, they immediately headed to the private family bath. Her son went in first, and Reiko followed later. Seeing her figure, one of the male guests suggested to his companion that she was a good woman and they should go peep on her. The two men followed Reiko and began to sneakily watch her. In the bathtub, her son was waiting, and Reiko apologized for making him wait before entering the tub. They then started to enjoy their incestuous honeymoon phase with passionate kisses as usual. The peeping men were shocked to see Reiko engaging in sexual acts with her grown-up son in the bath. Quickly, they took out their smartphones and began secretly recording them. That night, one of the men approached Reiko, pretending it was by chance, showed her the recorded video, and threatened her. Although Reiko had become stronger, she couldn't resist the man and ended up being overpowered. Despite her mind being elsewhere, Reiko tried to enjoy her dinner with her son. Suddenly, the men appeared, saying that the innkeeper had asked them to bring Reiko to him. Knowing what was going to happen, Reiko had no choice but to quietly follow them...
