Investigator Kotone infiltrates an aphrodisiac-oil smuggling ring alone and obtains decisive evidence, but her identity is exposed and the mission fails. Her slender body is immobilized by four-limb restraints and drenched in humiliating aphrodisiacs. She is subjected to oil-soaked sexual assault role-play, forced double deep-throat, toy torment, massive squirting, and a brutally pounded threesome with repeated creampies that arches her into bridge-like orgasms. Though she insists it is nothing compared with her training, even low-level thugs keep making her climax. A final group-assault role-play shatters her pride as overwhelming pleasure reduces the once-defiant investigator to total submission.