Women belonging to the underground sex organization "NEOBLACK" live in absolute loyalty to their boss, stripped of any private life. Not only during work but even in their personal time, they constantly endure humiliation as punishment for pledging allegiance to the organization's executives—forced to lick feet, tortured with restraint devices, subjected to deep throat, cum swallowing, and humiliating foursomes. Their existence is that of mere flesh toilets, enduring a hellish daily life.