Tenchi Masaki is a college student walking through the forest who sees what appears to be a meteor falling from the sky. He investigates and finds a beautiful young woman from the wreckage of a spaceship. Her name is Ryoko and she says she is being chased by a vicious criminal who later appears in the house, meaning to attack Tenchi and Ryoko. Meanwhile, a police officer of the galaxy, Mihoshi, attempts to arrest Ryoko for being a space pirate...