Switch

Two rookies at Japan's Narcotic Control Department, Haru and Kai, face challenges from drug traffickers, gangs, killers, and other dangerous individuals. Kai, the more compassionate and kind-hearted of the two, has personal issues and exhibits a drastic shift in behavior under specific circumstances, becoming a deadly and efficient killer. This transformation is likened to flipping a "switch." As they carry out their duties, the reasons behind Kai's unusual conduct and his true identity gradually come to light.