A brother and a sister enroll at the Magic High School. In this school, the students are divided into two distinct groups as "Weeds" and "Blooms." Tatsuya, the brother, has a secret…

The President of the Student Council invites Miyuki and Tatsuya to lunch. During lunch, she asks Miyuki to join the Student Council. Miyuki says that her brother should also join them. Will he have to prove himself?

Everyone is surprised at how quick Tatsuya defeated Hattori in the duel. Tatsuya begins his work as part of the Disciplinary Commitee. Meanwhile, Miyuki starts showing more mixed emotions towards her big brother.

Tatsuya and Miyuki visit FLT where a Flying Spell experiment is taking place. They run into members of the Yotsuba family there. Tatsuya sees Mikihiko practicing Spirit Magic. Since Tatsuya seems to be interested, Mikihiko tells him about Crystal Eyes.

The bus that is carrying the students to the Nine Schools Competition is attacked by unknown forces. Tatsuya suspects that it is the work of an insider. At the banquet before the competition, students meet Kudou, the chairman of the Magic Association.

Thanks to Tatsuya's engineering skills, First High School players finish on the podium. Third High School students know that the success of First High is due to Tatsuya's skills. What will they do to beat First High School?