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A Certain Scientific Railgun: A Certain Scientific Railgun

24 episodes Premiered Oct 2, 2009 Updated Jul 25, 2026

A Certain Scientific Railgun season 1 follows the lives of four students living in Academy City, a technologically advanced metropolis described as being twenty to thirty years ahead of the rest of the world. The city’s two‑point‑three million residents are eighty percent students, and the curriculum centers on the development of esper abilities. The series centers on Misaka Mikoto, a top‑level esper whose power allo

Season overview

A Certain Scientific Railgun season 1 follows the lives of four students living in Academy City, a technologically advanced metropolis described as being twenty to thirty years ahead of the rest of the world. The city’s two‑point‑three million residents are eighty percent students, and the curriculum centers on the development of esper abilities. The series centers on Misaka Mikoto, a top‑level esper whose power allows her to manipulate electricity. She shares a room with Kuroko Shirai, another high‑level esper who serves as a member of Judgement, a student‑run law‑enforcement organization. Both girls attend Tokiwadai, a private academy reserved for the city’s most gifted and affluent youth. Kuroko’s Judgement partner, Kazari Uiharu, is a low‑level esper who studies at Sakugawa Middle School, where she is friends with Ruiko Saten, a level‑zero student who possesses no esper powers. Throughout

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Episodes

S1·E1

Electromaster

Oct 2, 2009

Mikoto, Kuroko, Kazari, and Ruiko take action against a gang of bank robbers. When Ruiko is injured trying to rescue an innocent bystander, Mikoto angrily unleashes her railgun pow

S1·E3

Tokiwadai Is Targeted

Oct 16, 2009

Someone is tasering students and drawing on their faces with permanent marker! While Kuroko and Kazari investigate, poor Ruiko becomes the latest victim. Who is behind the unusual

S1·E4

Urban Legends

Oct 23, 2009

Awkwardness ensues when Mikoto runs into Kamijo. When they meet again later in the day, Mikoto demands a duel! She gives it her all, but there’s a chance she’s no match for Kamijo’

S1·E5

A Certain Pair of New Trainees

Oct 30, 2009

Uiharu and Kuroko have an argument that leads to recollections of the past, when the girls were young Judgment recruits, and a dangerous mission resulted in a life-long promise bet

S1·E6

Everyone is Proactive When it Comes to This

Nov 6, 2009

Someone is planting bombs all over Academy City, and it’s up to Judgment to stop the person responsible. Mikoto, wanting a piece of the action, uses Uiharu’s badge to investigate o

S1·E7

Abilities and Powers

Nov 13, 2009

As Kuroko and Konori begin to suspect Judgement officers are the true targets of the mysterious bomber, Uiharu, Mikoto, and Saten find themselves in an explosive situation while sh

S1·E8

Level Upper

Nov 20, 2009

Mikoto and Kuroko ponder the ramifications of Kaitabi’s shocking display of strength and wonder if Level Uppers actually exist. Before they can find answers, Kaitabi mysteriously s

S1·E9

Majority Report

Nov 27, 2009

Even as Mikoto and Kuroko question Dr. Kiyami about the side-effects of Level Uppers, Saten wonders if she should use the one she recently found - even though there could be danger

S1·E10

Silent Majority

Dec 4, 2009

Saten falls into a coma after she confesses using a Level Upper to Uiharu. Later, Mikoto and Kuroko discover that all of the recent coma patients are connected - in more ways than

S1·E11

Dr. Kiyama

Dec 11, 2009

After inadvertently connecting to Kiyama’s mind, Mikoto learns what’s been motivating the doctor’s actions. Later, when the network goes out of control, Mikoto comes face to face w

S1·E12

AIM Burst

Dec 18, 2009

The girls work to stop the monster before it reaches a nuclear power plant! Uiharu’s efforts slow the abomination down, but Mikoto might be the only person able to stop the creatur

S1·E14

Special Workshop

Jan 8, 2010

Saten and the other students who used the Level Upper learn some valuable lessons when they attend a special weekend workshop taught by Komoe and Yomikawa.

S1·E15

Skill Out

Jan 15, 2010

Misaka and Kuroko investigate a gang called Skill Out. The group is known to be attacking Espers all over Academy City - but in some instances, a mysterious man arrives just in tim

S1·E16

Academy City

Jan 22, 2010

Konori’s past with Big Spider is revealed. In the present, she finds herself torn. Can she honor her responsibilities as a Judgment officer while somehow remaining loyal to Kurozum

S1·E17

Tsuzuri's Summer Vacation

Jan 29, 2010

After Komoe and Yomikawa encourage her to get a hobby, Tesso rediscovers an old school arcade game she loved as a child and forms an unlikely bond with a fellow fan.

S1·E18

Asunaro Park

Feb 6, 2010

Misaka and the girls decide to play matchmaker with their dorm’s Head Resident and Daigo, Uiharu and Saten's teacher. Things look to be working out - until Daigo brings up the subj

S1·E19

Midsummer Festival

Feb 12, 2010

The midsummer festival arrives, and students are preparing to show off their school for friends and family. Misaka’s scheduled to perform a violin solo for the festivities - if her

S1·E20

Poltergeist

Feb 19, 2010

The gang discovers that the recent wave of earthquakes is connected to a phenomenon called poltergeisting - and there’s a chance Uiharu’s new roomie might be somehow be involved.

S1·E21

Voices

Feb 26, 2010

Kuroko suspects Haru'ue has something to do with the recent poltergeisting events, and it’s causing tension between her and Uiharu. Later, Haru'ue reveals a hidden part of her past

S1·E22

Level 6

Mar 5, 2010

The past comes into focus as Haru'ue and Edasaki’s connection to a common Child Error facility is revealed. Later, Misaka sets out to find Kiyama after learning that the rogue scie

S1·E23

What Is It You See in Your Eyes Right Now?

Mar 12, 2010

Therestina reveals new information about her real identity and her master plan. Meanwhile, Kuroko and the gang vow to fight alongside Misaka in order to save the children jeopardiz

S1·E24

Dear My Friends

Mar 20, 2010

Misaka and her friends reach the facility where the children are being held, but Therestina uses Capacity Down to take the Espers out of the fight. With everything on the line, it’