Ai, an investigator, is ordered to use her charms to approach the head of a drug organization she is pursuing in order to capture the scene of a transaction. Ai becomes the head's favorite masochist, gains his trust, and finds out the date and time of the transaction. When she goes to see him, she finds her boss there! Now that she knows the truth, Ai has no way to be freed except by joining his team, and she is humiliated in every way possible. She resists, enduring enemas, genital pleasure torture, and whips and candles, but her body's reactions are honest...