[konart]

In the story, just before the completion of the Academy City space elevator "Endymion," the main characters Kamijo and Index encounter a level 0 girl named Arisa. The Magicians are after Arisa, and they attack Academy City. A female leader named Shattoaura leads a unit from Academy City against the attack. Kamijyo and Index learn from Stiyl that Arisa is key to a brewing war between the sides of Magic and Science.

via Animenewsnetwork