A temporary Second Lieutenant of the AST, she works for the DEM Industries based out of England as a Wizard. Revealed to be the real sister of Shido, she does not have any memories from that time but possesses just a picture which was her only proof that she had a brother. Like Shido, she has blue hair and brown eyes, with her blue hair tied in a ponytail. Due to the procedure she underwent to strengthen her fighting power, she has less than 10 years to live, but was kept from knowing this truth about her body. After being defeated by Kurumi, she is hospitalised but is taken away by Ratatoskr in volume 5 whereupon she learns of this truth and defects to Ratatoskr in volume 6.