Iria: Zeiram the Animation (イ・リ・ア ゼイラム ジ アニメーション) is a six episode original video animation (OVA) anime series produced by Ashi Productions. The series serves as a prequel to the original live-action film Zeiram, taking place several years earlier when the female bounty hunter protagonist Iria is still a rookie and detailing the events surrounding her first encounter with the unstoppable Zeiram. This does somewhat contradict the films, which imply that Iria’s first encounter with Zeiram was in the first film.
Iria is the story of a girl and the Alien being she loves to hate. The series begins with her brother, Gren, taking a job. He is a bounty hunter, and one well known for his incredible skill. Iria, being a skilled apprentice bounty hunter herself, tags along. What is the job, one might ask. It is to find out what has happened to the crew and cargo of a Space Station. Needless to say, nothing is as it seems, and the war between Iria and Zeiram begins in earnest.