A film centered on the training of a schoolgirl. Mika, thinking it's just an ordinary paid date, finds herself in a room obeying the man's commands. Sensing her latent masochistic nature, the man begins intense, thorough training. Conducted in a completely sealed room, this training gradually takes control of Mika's mind and body. The pleasure derived from being tormented awakens the submissive desires buried within her, slowly turning her into his possession. A story where the tension of confinement merges with the ecstasy of discipline.