A mace wielder that runs a blacksmith shop in Aincrad on the 48th floor. She made Asuna's rapier "Lament Light" and one day got a request from Kirito to make him a sword with similar or better quality than his one handed long sword "Elucidator" that he got from a monster drop. She told him that if she had the right materials she could make weapons that would break any sword, so they formed a party and went on a journey to find the material she needed. Because of that journey she came to the conclusion that she felt lonely and yearned for warmth.
In ALO, she is Leprechaun race blacksmith.