A Certain Scientific Railgun

A Certain Scientific Railgun is an anime series in the To Aru Majutsu no Index franchise
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A side story of To Aru Majutsu no Index that follows Mikoto Misaka, a Level 5 member student, dedicated to preserving law and order in Academy City.

This series is a spin-off of To Aru Majutsu no Index focusing primarily on the characters Mikoto Misaka, Shirai Kuroko, and their two friends Uiharu and Saten.

Academy City is a city where about 80% of its 2.3 million citizens are students and the majority of the population have esper powers, which is what the studies are focused on. The city's protective system, Judgment, is an FBI-like organization where some of the students with powers try to fight crime in the streets and two of the main characters, Uiharu and Shirai Kuroko, are part of Judgement trying to prevent crime as a more of an after school activity than a job. In Academy City the people with powers are categorized by what kind of powers you have and by level (from 0 - 5).

The anime series differs slightly from the manga, branching off to tell a separate story, not found in the manga series.


Misaka is one of the seven Level 5 powerhouses in all of Academy City and her high celebrity-like status creates a low self esteem for her. Her roommate Shirai is a Teleporter who works for Judgment and has a crush on Misaka, but even though her crush on her tends to make her do crazy, and sometimes erotic, things the two of them are best friends. Shirai's Judgment partner is Uiharu who is best friends with funny and cheerful Saten-San. The four girls become friends over time and they discover during their adventures together that although they are all opposites in various ways, they do accomplish the same things.

Uiharu and Kuoko seem to be assigned cases that are a bit out of their league which include fighting people who are stronger than what the database of each person actually says. Usually their opponent's powers creates a psychological problem in each of them, and because their power is so high Misaka ends up helping out Judgment as one of the strongest people in the city. What the girls don't realize is that the cases and people they fight are all connected. Kiyama, a researcher who has an awkward common sense when it comes to interaction with other people is more involved than what they really are aware of.

All this while Saten-San continues with her struggle to Level Up and get powers, Shirai continues to try and win Misaka's heart, Uiharu overcomes her low self esteem to be the best at what she can be and Misaka realizes that with friends like the ones she has, her problems don't seem as bad.



Mikoto Misaka (御坂 美琴 Misaka Mikoto)
Voiced by: Rina Satō; Brittney Karbowski
Esper: level 5 - Electromaster
Gender: Female
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Kuroko Shirai (白井 黒子 Shirai Kuroko)
Voiced by: Satomi Arai Alison Viktorin
Esper: level 4 - Teleporter
Gender: Female
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Ruiko Saten (佐天 涙子 Saten Ruiko)
Voiced by: Kanae Ito Brina Palencia
Esper: level 0
Gender: Female
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Kazari Uiharu (初春 飾利 Uiharu Kazari)
Voiced by: Aki Toyosaki Cherami Leigh
Esper: level 1 - Temperature Manipulation
Gender: Female
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Series Credits
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Original US Poster Art

General Information Edit
Name A Certain Scientific Railgun
Name: とある科学の超電磁砲(レールガン)
Romaji: To Aru Kagaku no Choudenjibou
Publisher J.C. Staff
Start Year 2009
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Aliases To Aru Kagaku no Choudenjibou
To Aru Kagaku no Railgun
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