While being a married woman and working as a flight attendant, Yurina is blackmailed by a man who has seized a compromising secret, forcing her into isolation for daily sessions of domination and training. A naturally submissive masochistic woman, Yurina loses all rationality when drugged with aphrodisiacs, climaxing repeatedly in a state of frenzied ecstasy. Her defenseless state is recorded on the man's camera, and she becomes so addicted to the pleasure that she can no longer endure its absence. This ongoing cycle of submission and dependency is captured entirely on video.