Tamaki was sexually harassed by her father-in-law, but she couldn't bring herself to tell her husband. Her father-in-law, getting carried away, attacks her, tying her up as she resists, and enjoying her to the fullest. From then on, her father-in-law's training intensifies, attacking her in the daytime and then in the night. Her body responds to his constant assaults, and now he has her violated by the hard-thrust cock of a manual laborer, who watches and enjoys the action.