Crystal Angela Moon Harpex is the first and only daughter of Gabriel and Haven Harpex, and the sister of Cantosa and Caine Harpex. She was born a few years after Cantosa, through normal birth processes unlike her brother, Cantosa.

Crystal was sent to a finishing school of sorts seeing as how she was the daughter of the Empress. She was trained in the everyday was of a young lady of the Imperial Court and developed a very aristocrat tone.. She would later decide to go to Earth for an unknown reason..