Black Doctor Ayako, the Underground Doctor Who Degenerates into Anal Sexual Pleasure, Imai Natsuho ATID-558

As long as there's money, she's willing to take on any case, no matter how dangerous—that's Dr. Ayako, a master of the underworld. One day, she receives a request from an organization executive. "It costs money, huh? If possible, please provide the patient's information..." However, this is actually a trap set by a group of men targeting her body...