Emma

Emma (エマ Ema) is the main female protagonist of the series Magico created by Naoki Iwamoto. She is the current holder of the Echidna. Due that she has that powerful force of magic, she had been locked up in a unknown area with a guard to protect her. There are many other mages searching for her after that Marouni Gate incident had leaked her appearance. There are many reasons people would want to capture her ranging from absolute strength, sharing the magic with everyone, or preventing the world from being destroyed.