Toaru Majutsu no Index Light Novel Volume 16/Chapter 4

Characters
By order of appearance
 * Misaka Mikoto
 * Kamijou Touma
 * Acqua of the Back
 * Kanzaki Kaori
 * Tatemiya Saiji
 * Itsuwa
 * Knight Leader (flashback)

New Characters

 * Villian (unnamed, flashback)