Toaru Majutsu no Index Light Novel Volume 12/Prologue

Synopsis
Shirai Kuroko's night becomes tense as she hears her beloved Onee-sama talk about a certain penalty game with an unfortunate teenager.

Adapted To

 * Anime: Toaru Majutsu no Index II Episode 17
 * Manga: Toaru Majutsu no Index Manga Chapter 097

Characters
By order of appearance:
 * Shirai Kuroko
 * Misaka Mikoto

Locations

 * Tokiwadai Dormitory