Elite investigator Misuzu, angered and frustrated by the serial disappearances of undercover agents, takes action to protect her comrades. Following a lead, she raids the hideout of the Black Lion Society—only to find herself trapped in a carefully laid ambush. Unjustly violated and forcibly injected with the very illegal substance her team was investigating, Misuzu is plunged into a humiliating torment of endless, inescap-able pleasure. Despite her strong pride and desperate resistance, she is gradually overwhelmed by relentless waves of ecstasy. What fate awaits her now?