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…!?