Decoy Investigator Yuu - Infiltrated Creampie Edition -

Yu is a truly invincible investigator who says, "It's impossible to be caught, and even if you get caught, it's a genius who escapes." The mission she took was to "infiltrate a malicious sex club that uses the new aphrodisiacs and smash the mastermind all over!" She sneaks into a sex club drinking party and tries to get information by using sex, but she is forced to drink an aphrodisiac and is confined and restrained as a meat toilet. Because he believes in his own ability to escape, he endures to the limit...!