Secretary Yayoi succumbs to her boss's relentless advances and is forced into a slave contract, becoming his personal sex toy. Every morning before work begins, the humiliation starts—her pussy is lewdly groped and her anus violated. Even with coworkers present, secret fondling continues during office hours and meetings, forcing her to orgasm against her will. Late at night in the empty office, she's penetrated deeply, writhing helplessly despite herself. The film captures Yayoi trembling in shame as she's broken down and used as nothing more than a sexual slave.