Born into the well known Saionji household, Reimi was chosen to partake in the maiden voyage of the Space Reconnaissance Force at a young age. Joining her best friend, Edge Maverick, the two take to the skies to ensure humanity survives after the recent nuclear war devastated Earth. While Reimi is overly kind to everyone she meets, she is often very hard on herself. She serves as Edge's logical compass and lends a bit of rational thinking whenever Edge makes a hasty decision that could get him in trouble. As an expert marksman, Reimi uses a bow and arrow to take down enemies from a distance.