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Significant plot details follow.
Marie (マリア, Maria) is one of the main protagonists in Rhythm Thief and the Emperor's Treasure. She is a young violinist of seventeen who accompanies Raphael because of the marking on her violin being identical to the one on the coin Raphael's father left him and the Bracelet of Tiamat.
As Marie grew up in the convent, Jean-François hired someone to give her violin lessons, since Marie wanted to play the piece her mother left her. She hopes to become famous so that one day, her mother will listen to one of her performances. Marie befriends Josette at the convent.