The masochist who was sent to retrain after being caught trying to escape from Mistress, sold to a debtor The man who was, the masochistic man who volunteered to fall down to the point of falling, such men to the masochistic slave of a full-fledged A masochistic slave retraining underground prison created to train. The beautiful female instructor who is in charge of this facility is very strict and extremely sadistic, despite her good looks. The three men who are on strike and sent in become easy prey. The beautiful female instructor repeatedly humiliates, humiliates, physically punishes and abuses the men under the guise of retraining, and the Mistresses' desires are repeatedly violated. The body and mind are remodeled as a sex toy that can make.