Kyoko Ohashi, who gained national fame in swimming competitions during her student days, has returned to her alma mater, Azaka Gakuen, as an advisor to the swimming club. - The once prestigious swimming club is now in danger of survival, and Kyoko is invited to help rebuild it. - However, students Hisamichi and Hashimoto plan to rebel against Kyoko's passionate guidance. - After calling Kyoko to the gymnasium and knocking her unconscious, he begins to play with Kyoko's body.