A first-year student at Third High in Kanazawa. She is a brilliant magician known as Éclair (lightning) because of her lightning-fast movement spells. She takes pride in being the heir of the Isshiki family, one of the eighteen support clans, and has a tendency to be condescending toward others who come from lower-ranking families or have inferior magical powers. Her magical powers and sense of responsibility are unmatched among her peers and she is popular with her classmates. She was chosen to compete in the main Mirage Bat tournament even though she is still a freshman.