Four girls take part in illegal underground fighting event "Girl's Blood" held at an abandoned school building in Roppongi every night. The girls have their own stories and quirks from their private lives. Satsuki (Yuria Haga) suffers from a gender identity disorder, Chinatsu (Asami Tada) ran away from an abusive husband, Miko (Ayame Misaki) is a S&M queen and Mayu (Rina Koike) has a Lolita face.

A comet crashes into a Japanese forest and a group of mighty ninjas must fight a group of killer Aliens before they reach their village and kill everyone.