A Course 1 student who entered First High School this spring with top scores. Tatsuya is her older brother. Both male and female students are mesmerized by her mysterious beauty. She addresses Tatsuya as “Brother” out of her deep respect for him, but sometimes her feelings for him can get out of control. She is an honor student with excellent grades and incredible magical powers, but can’t stand that her brother, who is in Course 2, is treated as an inferior student. With her severe brother complex, she shows no mercy to anyone who acts condescendingly towards her brother.