Toaru Majutsu no Index (とある魔術の禁書目録（インデックス） Toaru Majutsu no Indekkusu?) is the first manga series that is based off the Toaru Majutsu no Index franchise. Unlike the original content that is featured on the Toaru Kagaku no Railgun manga series, the Toaru Majutsu no Index manga is adapted from the light novel of the same name. It is illustrated by Kogino Chuuya, his only manga work thus far.