Welcome to a world where mysticism and science collide, and supernatural powers are derived from either science or religion. At the heart of this world is Academy City, an advanced metropolis whose population is comprised mostly of students The majority of students are enrolled in the city's "Power Curriculum Program," where they must learn to master their latent psychic powers. Out of several million students, only seven are deemed powerful enough to have Level 5 status. 
Meet Mikoto Misaka, the third most powerful Level 5 esper in Academy City. Together with her best friends Kuroko Shirai and the other members of Judgment, a student-run law enforcement agency, Mikoto delves deep into the dark heart of the scientific sprawl she calls home, and uncovers secrets she wishes she hadn't! 
(Source: Seven Seas Entertainment) 
Note: Includes 10 extra chapters.

Academy City is a highly developed place in terms of technology. It is said to be 20 to 30 years ahead of the rest of the world, and 80% of its 2.3 million residents are students. The focus of studies here is directed towards esper powers. Misaka Mikoto, one of the top level espers in town, shares a room with Kuroko Shirai, another high level esper who is a member of Judgement, a law enforcing agency composed of students. Both attend Tokiwadai, a private school reserved for the high-leveled and the rich. Kuroko's partner at Judgement, Kazari Uiharu, is a low level esper who studies at Sakugawa middle school. Her best friend and classmate there is Ruiko Saten, a level zero, one who has no esper powers. Together, the four encounter several adventures in the exciting scientific town. 
(Source: Anime News Network)

The second season of Toaru Kagaku no Railgun. 
 
Something sinister is going on in Academy City. The shadows are filled with whispers of an organization cloning super-powered students known as espers. High-ranking master of electricity, Mikoto Misaka, laughs off these stories until she comes face to face with a copy of herself. After learning that these clones - her sisters - are being systematically murdered in a series of experiments designed to turn a sadistic killer into the strongest esper in history, Misaka vows to save her copies and destroy the organization responsible for the project. 
 
As Misaka prepares to face off against the organization’s power-hungry esper, she discovers that she wasn’t the only victim of the scientific forces conspiring within the city - and that’s something Misaka and the girls of Judgement simply won’t stand for. 
 
(Source: Funimation)

Hokaze Junko, one of the top “handmaidens” of Shokuhou Misaki, has always blended into the background of Tokiwadai–an easy feat when you go to an all-girls’ school full of powerful psychics. But when a ghostly figure starts stalking her, Junko is suddenly the center of attention! As Junko investigates her stalker, she starts to learn new things about her classmates…and herself! 
(Source: Seven Seas Entertainment)
 
Note: Includes 1 extra chapter.

The third season of Toaru Kagaku no Railgun. 

The Daihasei Festival has begun, and that of course means that Tokiwadai Middle School—a prestigious all-girls' middle school—is competing too. Despite the participation of the "Ace of Tokiwadai," Mikoto Misaka, the other students who are participating are still putting their utmost effort into winning, no matter how impossible the feat may seem against her might. 

However, not all is fun and games. Due to the festival, Academy City opens to the outside world, and various factions have begun plotting ways to infiltrate the city. Misaka appears to be on their radar, and as the festival proceeds, people lurking from the shadows begin to emerge... 

Toaru Kagaku no Railgun T brings back the Tokiwadai Ace and her friends as they dive deeper into the dark side of Academy City. From terrorist attacks to ruthless underground projects, anything is possible in this city. 

(Source: MAL Rewrite)

Set in a city of not only scientifically advanced superhuman students, but in a world where magic is also real. Kamijyo Touma's right hand, the Imagine Breaker, will negate all magic, psychic, or divine powers, as well as his own luck. One day he finds a young girl hanging on his balcony railing. She turns out to be a nun from the Church of England, and her mind has been implanted with the Index Librorum Prohibitorum&mdash;all the magical texts the Church has removed from circulation. 
(Source: Wikipedia) 
Note: Includes 16 prologues, 18 epilogues, and 6 extras.

Separate 114-page volume bundled with the special edition of the Toaru Kagaku no Railgun manga volume 5. It contains special illustrations, comics and 2 mini-novels. A mini-novel by the author of the Baccano! and Durarara!! series, Narita Ryogho. 
Misaka Mikoto finds herself fighting against the Rank 7 Level 5 of Academy City, Sogiita Gunha. However, a young girl turns out to be the culprit behind their unprepared display of abilities: a primary school student named Kihara Nayuta. 
 
(Source: Toaru Wikia)

Toaru Kagaku no Railgun: Arts and Sciences City SS is a short story in Arts and Sciences City that takes place in the time period between September 3rd to 10th. Academy City has a exchange program with the rest of the world that allows some students to travel for this week to other places, and some students are allowed into Academy City during this time. 
Mikoto, Kuroko, Saten and Uiharu went to the Arts and Sciences City, made on a artificial island off the coast of California for a field trip. The Arts and Sciences City is known as a city that has cutting edge technology (in terms of the standards of the 'Outside' of Academy City - ie it is still far behind that of Academy City's), and is trying to take over Hollywood as the entertainment capital of the world. Stuntsmen and shows occur frequently at this city, and anything out of the ordinary is treated as another show. Due to the climate apart from sleeping everyone wears their swimsuits all the time. 
(Source: Toaru Majutsu no Index Wiki)

Side-story novel to the Index/Railgun. 
Misaka Mikoto is invited to Russia to demonstrate the abilities of Level Five in a shopping mall. There she meets a girl named Lessar.

Gaiten Shoku is a series of light novels that physically compile side-stories for the Toaru Majutsu no Index franchise that were originally included in DVD/Blu-Ray limited editions, magazine issues of Monthly Comic Dengeki Daioh, and other various releases.
 
Included Stories in Volume 1 (2020/6/10): 
- Kanzaki Kaori (神裂火織編); 2010/1/29 - 2010/8/27 
- Necessarius Special Admission Test (『必要悪の教会』特別編入試験編); 2013/7/24 - 2014/2/24 
- Road to Endymion (ロード トゥ エンデュミオン); 2013/2/23 
Included Stories in Volume 2 (2020/8/7): 
- A Certain Scientific Railgun SS (とある科学の超電磁砲SS); 2009/1/23 - 2009/8/21 
- A Certain Scientific Railgun SS2 (とある科学の超電磁砲SS2); 2011/1/26 - 2011/9/22 
- Cold Game (コールドゲーム); 2017/12/27 
Included Stories in Volume 3 (2024/12/10): 
- Agnese's Magic Side Work Experience (アニェーゼの魔術サイドお仕事体験編); 2020/4/30 - 2020/12/25 
- Biohacker (バイオハッカー編); 2019/10/30 - 2020/2/28 
Included Stories in Volume 4 (2025/2/7): 
- Stativarius (ステートバリウス編); 2018/12/26 - 2019/7/31 
- A Truly Crazy Way to Get Misaka Mikoto and Shokuhou Misaki to Flirt (御坂美琴と食蜂操祈をイチャイチャさせる完全にキレたやり方); 2025/2/7

A 2 volume anthology series featuring A Certain Magical Index and A Certain Scientific Railgun characters.

A new Railgun story by Kamachi Kazuma is about to begin!
 
Mikoto, Kuroko, Uiharu, and Saten ...... are all involved in this story!! In addition, the illustrations will be drawn in full color by creators who have been involved in the "Toaru" series, such as Haimura Kiyotaka, Kogino Chuuya, Fuyukawa Motoi, Yamaji Arata, Tachitsu Teto, Nogi Yasuhito, and Kisaragi Nankyoku. Expect a collaboration you won't see very often!

Note: Published in Toaru Magazine: Toaru Kagaku no Accelerator x Toaru Kagaku no Railgun

The catastrophe we all knew was coming has finally happened.
 
Academy City’s #3 – Railgun Misaka Mikoto.
 
Academy City’s #5 – Mental Out Shokuhou Misaki.
 
Those special girls stand at the peak of prestigious Tokiwadai Middle School. 

In a way, this confrontation may have been inevitable. This is a true direct clash between Level 5s, where rules, manners, morals, and taboos are meaningless. They will settle this once and for all, even if it means destroying the world as we know it.
 
Both Level 5s will draw on their full specs with no concern for what happens to anyone else.
 
When the #3 and the #5 wield their full power against each other with no restraint or mercy, who will ultimately win?
 
Note: Includes 1 prologue and 1 epilogue

The fourth season of Toaru Kagaku no Railgun.

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