Akari, a senior investigator at the Kanto Drug Enforcement Bureau, has hated sexual crimes since she was a child, influenced by her father, who was an executive at the bureau. However, Akari is caught in a trap set by the Sawaki Association, which distributes illegal sexual substances on the streets, and is captured. Ironically, the sexual substance she has been pursuing, which has a strong aphrodisiac effect, is injected into her body, but she endures it with her strong mental strength. However, Akari's hidden masochistic nature is exposed by the endless waves of pleasure...