The Magic God Invasion Arc (魔神襲来編 Majin Shūrai-hen?) is a story arc in Shinyaku Toaru Majutsu no Index, covered in Shinyaku Toaru Majutsu no Index Volume 13. During the Anti-Crime Orientation, Kamijou Touma is approached by the High Priest on behalf of the weakened True Gremlin. After refusing the Magic God's offer, Touma ends up fleeing from the Magic God on an Acrobike, together with Misaka Mikoto, leading to a destructive chase through Academy City.