Nozomi married her husband after being introduced by a friend, and now lives with him and his father at his family home. Their happy marriage passes by in the blink of an eye, and before long, their intimate life grows increasingly routine. Unfulfilled and longing for something more, Nozomi finds her desires noticed by her perceptive father-in-law. Suddenly, he ambushes her, binding her tightly with hemp rope. Confused and vulnerable, her body is drawn into intense sensations she's never experienced before. Under her father-in-law's relentless torment, she gradually surrenders to pleasure, becoming addicted to the ecstasy of tight bondage.