A new command is given to Aya, an elite female investigator who has solved many cases so far. A clue is found to uncover the true nature of an organization that is expanding its influence in the underworld using the finest illegal drugs as a weapon, and she is entrusted with an undercover investigation. Aya, who is passionate about her mission to destroy the organization, infiltrates the evil organization with the help of her boss, Terada, and succeeds in obtaining evidence, but is captured just before she can. Yes... this was Terada's cunning trap! Aya, who has been targeted for some reason, gradually loses her reason and her body starts to ache due to the special aphrodisiac oil. Then, as she is repeatedly creampied and made to cum by the men of the organization, she is reduced to a lewd human toilet...