Investigator Kaho Imai pursues the truth behind a series of missing narcotics officers. As her comrades fall one by one, frustration and anxiety mount—until a lead from an informant drives her to infiltrate the Black Lion Society's hideout alone. But the trap waiting for her proves far more dangerous than expected, and Kaho is captured. Her body is mercilessly violated, and the illicit drug she once hunted is forcibly administered. Fighting with iron will against the encroaching waves of pleasure, she struggles to resist—yet ultimately collapses past her limits, consumed entirely by unbearable ecstasy. What fate awaits Kaho, the elite agent with her toned, tanned body, now trapped in their clutches?