Shoko and Tomoko, who are in their third year of high school, and Nami, a first year, set up Sukeban Co., Ltd. and start their business by arbitrating between biker gangs. Meanwhile, Ryu from the Kumazasa-gumi asks for a prostitute, but Tomoko, who is still a virgin, accepts the request on her own. Next, they get a big job transporting drugs, but....