Detective Natsuki undertakes a dangerous undercover mission to rescue her junior colleague by infiltrating a sadistic sex training and human trafficking ring. However, she is captured by the enemy and subjected to relentless pleasure interrogation. No matter how much she cries, the torture never stops. Forced onto a sawhorse, a dildo is inserted into her anus while she is repeatedly brought to climax by a vibrator. She is further tormented by finger stimulation of her cervix and brutal drill torture, driving her body and mind to the brink of collapse. Gradually, her psyche begins to shatter, ultimately descending into madness.