A woman made completely of crystal glass, Claire works as a waitress on the GE999(Galaxy Express 999). Her mother forced her to give up her body in exchange for the glass body, and she's working part-time in order to afford a body of flesh. 
She is tall, almost 170 cm, with long hair. Her entire body is made of transparent, blue crystal glass; she has no eyes, nostrils, or mouth. She could be described as similar to a mannequin. She never wears clothes, whether during normal times or working