Yui, a former special agent whose beauty and abilities overwhelmed others, was living a happy married life with her husband after her retirement. One day, her husband invited his boss, who had been looking after her, to their house. Yui was shocked when she saw his face... It was a man who she had been sworn to destroy. Her secret from the past was exposed and everything was over. She had no choice but to give in to him, and that was the beginning of her downfall! She was humiliated by a creampie in her home while her husband was away! Her resistance was futile... Yui fell for the revenge of a man whose cock was the only thing that stood out. The strongest agent was impregnated with filthy sperm, and was transformed into a human toilet, a shadow of her former self...