is a Japanese light novel series written by Takumi Toyoda with illustrations by Vania 600. As of February 2014, eight volumes have been published by Sohgeisha under their Sohgeisha Clear Bunko imprint. A manga adaptation titled Rail Wars! Nihon Kokuyū Tetsudō Kōantai The Revolver began serialization in Mag Garden's Blade Online in 2012. An anime adaptation began airing in July 2014.