The husband, who was often away on a single assignment, would ignite intense passions with his mother, Yuu, every time he returned home. This continued until their son caught them. Apart from the son, his loins swelled and he began to become aware of his mother. One day, when his mother returned home drunk, the son played a prank. After that, the son relentlessly pursued her, and they continued their physical relationship day after day, leading them into an affair with no way out…
