2030, Tokyo. Minami, an officer in the EX-ARM Countermeasure Division, and Shiho, a junior officer in the traffic division, respond to a tip of a suspicious person and find a drug called "Happy" at the scene. By chance, they meet a mother in the vicinity who says her daughter was kidnapped, leading Minami to information related to "Alpha K," a new religious group that is rapidly gaining followers. Then, the EX-ARM task force is called in...? (Source: Shueisha, translated)