The world as we know it is actually just half the story, as Takeshi Nanase discovers abruptly one summer morning. While heading to kendo practice, Takeshi encounters an unconscious girl wearing a uniform he does not recognize. Takeshi does the decent thing and saves her, and in return, the girl wakes up and accidentally turns him into a magic-user. As Takeshi learns, there is the world he lives in and the world of magic users. Most magic users simply wish to coexist peacefully with non-magicians, but some harbor bigger ambitions. Mui Aiba is a magician enrolled in the Subaru Magic Academy, where magic users learn to control and channel their powers and how to live in peace with regular humans. After his fateful encounter with Mui, Takeshi and his newly magician friends, Kurumi Isoshima and Kazumi Ida, decide to enroll in the Magic Academy as well. All three friends have different reasons for continuing to fight, whether they are fighting to escape the past or to catch up to the future. They wield different kinds of powers, which they must learn to harness in order to fight off the Ghost Trailers, a group of magicians willing to use violence to assert their superiority over humans. Pursued by the Ghost Trailers, Takeshi and his friends must train to become stronger, face the leader of the Trailers, and prevent the beginning of the Second Great Magic War.