A Certain Scientific RailgunA Certain Scientific Railgun.

A Certain Scientific Railgun (Japanese: とある科学の超電磁砲（レールガン）, Hepburn: Toaru Kagaku no Rērugan) is a Japanese manga series written by Kazuma Kamachi and illustrated by Motoi Fuyukawa, which began serialization in the April 2007 issue of ASCII Media Works' Dengeki Daioh magazine. The manga is a spin-off of Kamachi's A Certain Magical Index light novel series, taking place before and during the events of the main story. Seven Seas Entertainment began publishing the series in North America in June 2011.