Nanako, a wife who works unfaithfully in anticipation of a gap when her husband leaves the house on a business trip. However, her father-in-law Yoshiro finds out about it, and she buys her anger like a raging fire. Yoshiro, who can't stop her anger, tries to make her change her mind by tying her up with a rope and punishing her... Her brother-in-law, who was watching the situation behind the scenes, became lustful at her beautiful sister-in-law and made her unable to move. It tramples over Nanako's body. It was the beginning of bondage carnal training called punishment.
