A Certain Magical Index: The Miracle of Endymion

On the day that Touma Kamijou and Index visit Academy City and see the space elevator called Endymion from afar, they meet Arisa Meigo, a Level 0 girl known for her remarkable singing talent. The three spend time together after school, enjoying each other's company, when suddenly Stiyl Magnus, a magic user, attacks them with Arisa as his target. Touma is puzzled why someone from the magic side would go after a girl associated with the scientific community. During the attack, Stiyl warns Touma, Index, and Arisa that Arisa's existence could potentially trigger a conflict between the magic and science factions.