Narcotics Agent Misuzu Kawanami, working for an unauthorized organization, begins a solo undercover investigation based on intelligence from her superior, Kuroda, to dismantle a pleasure drug trafficking ring. However, she falls into a trap. Surrounded by several men, she is kicked in the stomach and restrained. She is then drugged and rendered unconscious with a drill vibrator. As she faces a new crisis, Misuzu whispers, "I'll make you regret coming here more than death itself."