The only daughter of stage setting chief, Jean. Marion is the main person that takes care of Jonathon the seal, and even appears to be able to understand him. After her mother Cynthia, a former trampoline star at Kaleido stage, died in a freak accident during a performance, Marion became obstinate, but she gradually opens herself up to Sora. Eventually, she even begins to be able to perform on the trampoline once again.