Monaka wanders the city searching for companions who have vanished one after another. When a message from one of them finally arrives, she enters the Black Lion Society's office alone to attempt a rescue. The men drug her with a powerful aphrodisiac and she loses consciousness; when she wakes, she is restrained and subjected to relentless pleasure torture and forced orgasms. She desperately resists, but her body and mind are gradually conquered by the endless stimulation, leaving the warrior completely submissive to pleasure.