In the prestigious girls' dormitory, things appear to be running smoothly on the surface. The students are well-behaved and studious during classes, maintaining an air of propriety that instills respect in their peers and teachers alike.
However, beneath this facade of academic excellence lies a hidden world of dark desires and taboo indulgences. The girls have developed a penchant for defecating on others, and they've found the perfect subject for their sick games in the form of an anonymous, helpless captive kept in the dormitory's basement.
This poor soul, known only as "Toilet," is trapped and wrapped up like a mummy, unable to resist or fight back against his captors' depraved whims. His only purpose in life is to serve as a human toilet for the girls whenever they please.
The girls take turns defecating on Toilet without any shame or remorse. Their hard stools are softened by the sheer quantity of urine they've been pissing into the helpless boy's mouth before using him as a toilet bowl.
Despite knowing that engaging in such activities could land them in serious trouble if discovered, the girls find themselves driven by an insatiable desire for this form of humiliation and filth. They continue their disgusting rituals day after day, night after night, taking turns to use Toilet as their personal toilet bowl whenever they need to excrete their waste.
As the school year progresses, so too does the girls' twisted obsession with their secret toilet slave. The thought of him always being there, ready to receive their shit and piss, becomes an ever-present temptation that fills them with perverse excitement. Little do they know that one wrong step could expose their dark secrets and destroy everything they've worked so hard to build.
For now, though, the girls continue to revel in their illicit pleasure, using Toilet as their personal trash can for all things foul and disgusting. They smile to each other and exchange knowing glances, content in the knowledge that they can indulge their filthy desires in secret... for now.