In a crime-ridden area of Japan, girls start disappearing. First a teacher at the local school, and then one of the students, named Aiki. Her friend Nagisa decides to investigate, and pretends to be a guy and starts snooping around. Unfortunately for her, the girl's disguise was, to put it mildly, "unsuccessful"... Large breasts, still protruding from under the squeezing bandages, and long eyelashes and hair, finished off the image exposure. From the school building to the rented apartment, Nagisa and her unfortunate companions have a lot of fun.