Before the Academy City space elevator "Endymion" was completed, Kamijou and Index, the main characters of the movie, encountered Arisa. Despite being a level 0, Arisa was being chased by Magicians who later attacked Academy City. This led Shattoaura, a female leader, to defend the city with an Academy City unit. Stiyl revealed that Arisa held the key to an upcoming war between Magic and Science.