To Aru Kagaku no Choudenjibou
Toaru Kagaku no Railgun / A Certain Scientific Railgun / To Aru Kagaku no Railgun / 어떤 과학의 초전자포 / A Certain Vending Machine's Proof of Existence / Belli Bir Bilimsel Elektromanyetik Silah / Eine gewisse wissenschaftliche Railgun / Seorang Railgun Ilmiah / Toaru Jihanki no Sonzai Shoumei / To Aru Kagaku no Choudenjihou / Toaru Majutsu no Index Gaiden: Toaru Kagaku no Railgun / Una certa scientifica railgun / Un cierto cañón de riel científico / Некий научный Рейлган / Певний науковий Рейлган / เรลกัน แฟ้มลับคดีวิทยาศาสตร์ / とある科学の超電磁砲 / とある科学の超電磁砲（レールガン） / とある魔術の禁書目録外伝 とある科学の超電磁砲 / 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〉 / 某科学的超电磁炮 / 某科學的超電磁炮 / 科学超电磁炮 / 科學超電磁砲 / 魔法禁書目錄外傳 科學超電磁砲
In a world where science grants supernatural powers and religion gives rise to magic, Academy City is home to 2.3 million people. Most of its students take part in the Brain Development Program, but only seven have reached Level 5. Mikoto is a civilian student, and she and her friend Kuroko help maintain peace and order in the city as members of Judgment. This series is a spin-off of *A Certain Magical Index*.