Strong-willed investigator Yuki Takeuchi, along with her junior Okamoto, infiltrates the enemy hideout while pursuing an organization that manufactures illegal patch-type aphrodisiacs. However, she is captured instead and made into a test subject for a new aphrodisiac. Despite enduring relentless pleasure attacks, Yuki maintains her pride and attempts to escape once. But due to Okamoto's betrayal, overwhelmed by the aphrodisiac, she falls into a hopeless situation once again. In the end, she is consumed by a powerful aphrodisiac and pleasure, losing her dignity as an investigator and descending into corruption.
Is Patch's aphrodisiac really that pleasurable? Yuki Takeuchi is supposed to be a tough investigator honed by daily training, yet she can't withstand the pleasure and ends up in a yoga-like state just from having three patches applied. Of course, she puts up resistance, but her expression can't hide how good it feels. However, after that, the development becomes monotonous with just endless endurance sex, and by the end, I got bored.
As for the younger junior investigator, even though she herself says she wants to do it actively, there's no clear sex scene, and she only ends up doing a soap massage at the end—that's unsatisfying. I wish they had prepared a proper threesome scene including the villains for the finale.