Yui, who lives with her husband, has a tempting body that can be discerned even through her clothes. One day, a man breaks into their home, rapes her, and violates her body, taking humiliating photos of her in the process. From that day on, Yui has no choice but to obey the man's commands, being subjected to his cock daily for training. Her heart melts under the humiliation, losing her reason to the physical pleasure. Despite feeling guilty about lying to her husband, she finds herself seeking out the man's humiliation.
