Living in an electric appliance store at the corner of the shopping district, Ainaga Kouichi realized a weirdly dressed, mysterious girl standing at the nearby pedestrian crossing. Apparently, she is working for traffic control 24/7 without a break, taking care of the pedestrians so they can safely cross...However, when Ainaga goes to call out to her with a fellow shopping district inhabitant Namina, she refers to herself as a ‘robot’...?!