Also known as Efreet.
Shido is her adopted brother, and she became a Spirit by someone else's hand. While wearing her trademark white ribbons, she plays the role of a doe-eyed and adorable younger sister. However, when wearing her black ribbons, she becomes the commander of the secret organization Ratatoskr, which aims to stop the spacequakes by interacting with the Spirits. She loves lollipops so much that she carries a specialized case to bring them wherever she goes.
The angel she manifests is Camael.