Ryou Matsumoto is a screenplay writer that runs into a man and witnesses his murder. Unknown to him, he gets caught up in an illegal antique ring along with a girl he meets named Yuki. In order to survive, he ends up acting out the "action hero" role that he writes in his screenplays.
Five young superhero ninja employed by the International Science Organization oppose an international terrorist organization of technologically advanced villains who are trying to control Earth's natural resources.