In 2020, the Olympic and Paralympic Games will be held in Tokyo, and the capital of Japan will undergo further transformation in the last few years. In order to dispel the negative image from overseas, a new section "NS Section" will be created with a veteran female detective as the chief of the Investigation Division 1 of the Metropolitan Police Department. Izumi Demachi, a mid-career female detective, is appointed as the chief of the NS section. Izumi recruits the staff in charge, but there is no reply to anyone ... Through the incidents encountered by the detectives, the "past, present, and future" of this city that is transforming toward the Olympics Draw.
