The Ore no Imouto to Railgun Collaboration Project! is a crossover fiction web series penned by Ore no Imouto ga Konna ni Kawaii Wake ga Nai author Fushimi Tsukasa and Toaru Majutsu no Index author Kamachi Kazuma.

One day Kirino is offered the job of having a live talk over Niconico Live with Mikoto Misaka a Level 5 esper from Academy City. “Maybe she’ll introduce me to her little sisters if we get along.. ehehehe,” so saying, she immediately accepts the job and visits the Niconico main office with Kyousuke but…!?

A Certain Electromaster's Life Counseling
A Certain Magical Index Side Story - A Certain Scientific Railgun "My Mikoto Can't Be This Berserk"
My Little Sister and Railgun Collaboration Project!
My Little Sister Can't Cooperate with a Railgun
My Little Sister Can't Have a Girls' Talk with a Teleporter
Toaru Majutsu no Index Gaiden - Toaru Kagaku no Railgun Ore no Mikoto ga Konna ni Abare Mawaru Wake Ga Nai
とある魔術の禁書目録外伝　とある科学の超電磁砲『俺の“みこうと”がこんなに暴れ回るわけがない』
俺の妹と超電磁砲のコラボプロジェクト！

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