A Certain Scientific Railgun

とある魔術の禁書目録外伝とある科学の超電磁砲〈レールガン〉

Toaru Majutsu no Index Gaiden: Toaru Kagaku no Railgun

170 chapters

21 volumes

2007 – 2026

In Academy City—a futuristic metropolis thirty years ahead in scientific progress, where millions of students participate in an esper development program—excitement never fades. Espers are ranked across five levels of power, with only seven reaching the top. Among these elite is Mikoto Misaka, a middle school student and electromaster known as "The Railgun." Within a population brimming with extraordinary abilities, notable incidents occur frequently. Lately, homemade bombs disguised as everyday items have appeared in public spaces. Mikoto's close friend, Kuroko Shirai, investigates these cases as part of Judgement, a student-led disciplinary team. As each revelation unfolds, it becomes clear that a hidden threat looms over Academy City—one that could affect not only Mikoto and her companions but also the city's future.