Tomoka, who has just begun her new married life, enjoys a blissful daily routine surrounded by a kind father-in-law who always looks out for her and a gentle husband. However, she remains unaware of her caring father-in-law's hidden side. Before long, he can no longer suppress his overwhelming desire when faced with Tomoka's defenseless beauty, and his lust erupts uncontrollably. Driven by impulse, his actions throw Tomoka into shock and confusion. Yet, she chooses to accept his desire. Gradually, the young wife's heart and body are drawn into the cunning seduction techniques of her experienced father-in-law. This intense, emotionally charged drama pulls viewers deep into its gripping narrative.