Newly hired teacher Mai Kagari overheard a group of delinquent girls discussing their sugar daddy arrangements and scolded them harshly. In retaliation, the girl named Kurumi hires criminals to rape her. From that day on, Mai is forced into a hellish existence. Bound, exposed in public, subjected to nipple torture, deep throat, whipping, female dog play, forced masturbation, and countless other depraved BDSM acts, she is systematically broken down and transformed into a complete masochist. #KoroiP