Single mother Reiko worked hard to clean for the sake of her family. However, her efforts were ignored as she became entangled in the men's desires. While cleaning the toilet, she lost consciousness and ended up giving a blowjob to a penis. Seeing this, the department chief blamed Reiko for losing top-secret documents. In front of her coworkers, her body was toyed with, she was intensely tortured with sex toys, and was raped repeatedly.