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?

Tatsuya meets Masaki Ichijo and Shinkuro Kichijoji. It takes them by surprise that Tatsuya already knows about their background. Another accident happens at the Nine Schools Competition. First High students think that it was another act of sabotage.

Tatsuya is asked to compete in Monolith Code. He picks Leonhard and Mikihiko to be his team members. Kichijoji advises Ichijo to figure out a way to force Tatsuya into head-to-head combat to win Monolith Code. Will Tatsuya take the bait as expected?

Valentine's Day is a day to gift chocolate to the one you love and confess your feelings. This tradition is a source of joy and grief for many even at a distinguished institution like Magic High School. What will happen this year on Valentine's Day?