Based on violations of the Sword and Firearms Control Law, Anti-Prostitution Law, and Narcotics Control Law... to expose crimes, Nana and her partner, who is also her husband, infiltrate a certain adult entertainment building. However, just as they were about to catch the mastermind, a bullet fired by one of the women working there struck him down, leading to his death in the line of duty. Her superior scolded her for pushing too far, but Nana disguised herself as an entertainer and began another undercover investigation, gradually closing in on the mastermind. However, she did not yet know that an enormously large organization was involved in the case...
