In the future Magic has developed into a technology mostly used for war, making magicians weapons used by their respective countries. Magicians are educated in Magic High School where the students are separated into two different classes according to their magic affinity. Prejudice and strife dominate the daily life of the students.
The siblings Shiba Miyuki and Shiba Tatsuya enroll in the First Magic High School. Miyuki passes the magic test with amazingly high scores, while her older brother Tatsuya barely manages to scrape by. They get separated by the magic class system. How will these two impact the school system, and what mystery does Tatsuya hide?