Board Thread:Questions and Answers/@comment-25814349-20141206043259/@comment-7401186-20141208165004

Maybe this line.....
 * That’s right, it's a promise. This promise is to protect Misaka Mikoto and the world around her.This is my agreement with a certain nameless person who fell in love with her so quickly.
 * Said to Shirai Kuroko regarding his promise with Etzali from Toaru Majutsu no Index Light Novel Volume 08