Synopsis
Haru and Kai are two rookies in Japan's Narcotic Control Department, battling drug dealers, gangs, murderers, psychopaths, mysterious organizations, and various unstable individuals. Kai, the gentle and caring member of the duo, has his own personal struggles and a tendency to become a lethal killing machine in certain situations. His demeanor shifts as if operated by a "switch." As they go about their work, the secrets behind Kai's strange behavior and his true identity are gradually uncovered.
