Volume 1: 1. Kanzaki Kaori-hen 2. "Necessarius" Tokubetsu-hennyuu Shiken-hen 3. Road to Endymion Volume 2: 1. Gakugei Toshi-hen 2. Nouryoku Jitsuen Ryokou-hen 3. Cold Game

Toaru Majutsu no Index: Gaiten Shoko was released to commemorate the 15th anniversary of Kazuma Kamachi's debut. Toaru Kagaku no Railgun: Cold Game, the short light novel compiled in the second volume, was published on December 27, 2017, to celebrate the 10th anniversary of Toaru Majutsu no Index Gaiden: Toaru Kagaku no Railgun.