Madeleine is one of the five Fantasista Dolls summoned by the protagonist Uzume Uno. She is a tall young woman with long, wavy purple hair, light mauve eyes, and glasses. Her clothing consists of a semi-revealing off-white top and a dark grey skirt. Madeleine possesses a kind, gentle, and compassionate personality, always eager to help those around her. She is deeply devoted to her master and often goes out of her way to assist in any situation, sometimes to the point of being overeager. In battle, she serves as the group's tactician, planning strategies and coordinating attacks. Her notable abilities include control over earth-based magic, and she can transform into a powerful earth creature to confront opponents. Madeleine's primary motivation is to support and protect Uzume, and she forms close bonds with the other dolls, including Sasara, Akari, Katia, and Shimeji. While her initial eagerness occasionally creates friction with Uzume, she learns to better balance her desire to help with respect for her master's wishes. Over the course of the series, Madeleine remains a steadfast and reliable member of the team, contributing both her tactical mind and her nurturing nature to their shared adventures.