Beautiful Sex Expert Investigator: In the early future, the government created a secret intelligence agency using psychics. Team 5 leader Lee-hwa is dispatched to an undercover office, not the headquarters, and is monitoring the hostile forces alone. One day, a new psychic, Seung-tae, comes to her undercover office, and she starts working undercover with him. However, the new recruit was sent by the director to monitor Lee-hwa and report her every move.