High school girl Nagisa Rin (played by Yumi Sugimoto) is about to celebrate her 16th birthday, but she finds that her body is quietly changing. On her birthday, Rin was strongly stimulated and her right hand turned into a claw that could cut iron like mud. She hurriedly returned home and learned from her father Yojiro (played by Hiroji Tsuda) that she was actually a member of the mutant "Hiruko" tribe. Then she watched her parents being killed by the special forces affiliated with the Japanese government. The angry Rin awakened the devil in her body and went on a killing spree in the commercial street near her hometown. After that, Rin met the handsome leader of the Hiruko tribe, Kisaragi (played by Taku Sakaguchi) and the high school girl Ling (played by Yuko Takayama). Kisaragi vowed to establish a combat girl force that could compete with humans, and Ling was the combat coach of this group of Hiruko girls. The racial war is about to break out... This film is divided into three chapters, each directed by Taku Sakaguchi, Noboru Iguchi, and Kihiro Nishimura.