Toaru Majutsu no Index Light Novel Volume 18/Chapter 8

Characters
By order of appearance
 * Acqua of the Back
 * Knight Leader
 * Carissa
 * Kanzaki Kaori
 * Elizard
 * Bayloupe
 * Lessar (voice-only)
 * Villian
 * Index Librorum Prohibitorum
 * Kamijou Touma