Iria: Zeiram the Animation

Iria is the story of a girl and the alien being she loves to hate. The series starts with her brother, Gren, taking a job. He is a bounty hunter, well known for his incredible skill. Iria, a skilled apprentice bounty hunter herself, tags along. What is the job, one might ask. It is to find out what 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.