Hinano, a mischievous office lady with a dominant, aggressive nature, drags her M-slave boyfriend and senior colleague out of the office every day, teasing his anus in the restroom. Catching her pet-like department chief spying on them, she lures him to the storage room and tempts him into reverse anal sex. At night, she changes into bondage gear and repeatedly brings her senior to female ejaculation. Constantly fantasizing about being taken, this wicked seductress toys with the minds of masochistic men at the office. Obsessed with penetration, she dominates both the heart and the ass of her masochistic boyfriend daily—even impaling her boss, the department chief. Entranced by her devilish charm, he can't help but fall deeply, madly in love with her.