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A Certain Scientific Railgun is a Japanese manga series written by Kazuma Kamachi and illustrated by Motoi Fuyukawa. It is a spin-off of Kamachi's A Certain Magical Index light novel series and focuses on the exploits of electromaster Mikoto Misaka and her friends in the futuristic Academy City. The series has been adapted into multiple anime seasons and has received positive reception. The opening theme song 'Only My Railgun' won Best Theme Song at the 2010 Animation Kobe Awards.