A helpless male slave is subjected to the merciless Femdom of his Mistress, who sets him up in a chastity cage for an indefinite period. The slave is forced to watch his Mistress engage in explicit, kinky acts with other partners, all while he remains locked and denied release. The Mistress torments him with close-up views of her pleasure, rubbing her wet pussy in his face, and even allowing others to tease and humiliate him. The slave's desperation grows as his balls turn a deep shade of blue, but his Mistress shows no mercy, pushing his limits in this intense, long-term chastity training.