After completing their combat training, Noriko and Kayoko are deployed on their first real mission to apprehend criminals in Shinjuku, leaving the mecha-obsessed Yasuo behind. Following the successful operation, Noriko and Yasuo bond over their reports and discover a mutual romantic attraction, leading to an intimate encounter. Their newfound passion is quickly put to the test when an emergency call summons the Mobile Police Force to handle a riot in the Ginza slums.