Across Japan, there are nearly 300 narcotics agents—drug crime specialists employed by the Ministry of Health, Labour, and Welfare. Among them is ace narcotics agent X, the director of the 1st Investigation Division. Together with his fellow agents, he's led the way to solving countless enormous cases. With cases of cannabis users increasing each year, drug-related crime has begun eating away at younger generations. The reality is that drugs have found their way into everyday life—but narcotics agents battle back and forth on the frontline to cut them off. This unprecedented coverage lays bare the real job of the narcotics agent.