A Certain Scientific AcceleratorA Certain Scientific Accelerator.

A Certain Scientific Accelerator (Japanese: とある科学の一方通行（アクセラレータ）, Hepburn: Toaru Kagaku no Akuserarēta) is a Japanese manga series written by Kazuma Kamachi and illustrated by Arata Yamaji. It is a spin-off of A Certain Magical Index light novel series, which focuses on Academy City's most powerful Level 5 esper named Accelerator. The manga was serialized by ASCII Media Works through their monthly magazine Dengeki Daioh from December 2013 to July 2020 and published in English by Seven Seas Entertainment.