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A Certain Scientific Railgun

2009 ★ 7.4 4 seasons 73 eps TV-MA

Animation

Action & Adventure

Comedy

Sci-Fi & Fantasy

Misaka's electro-manipulation skills - and her delightfully destructive railgun projectile movement - make her a rock star in Academy City. The techno-metropolis is filled with supernaturally powerful students known as Espers, including Misaka's flirtatious friend and roommate, Shirai Kuroko. She uses her teleportation skills as a member of the Judgment law enforcement team, fighting crime alongside fellow agent Uiharu. Joined by their friend Saten, a spunky Level 0 Esper, Misaka, Kuroko, and Uiharu have a blast taking on danger whenever and wherever it arises.

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Where to watch A Certain Scientific Railgun

A Certain Scientific Railgun is available to stream on Nabby via 6 verified sources, aggregated from publicly available embed providers. The animation has 4 seasons and 73 total episodes, rated 7.4/10 by 137 viewers.

Last verified: October 14, 2026 · Source: TMDB

Episodes 73 total across 4 seasons

24 episodes20093 watched

Electromaster✓

Oct 2, 2009★ 5.4

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 power!

When Working Under a Hot Sun, Rehydration Is Essential✓

Oct 9, 2009★ 6.8

Mikoto and Kuroko get in trouble for using their powers in the dorm. Their punishment: pool cleaning duty! Later, Kuroko finds herself feeling frisky after accidentally ingesting a powerful aphrodisiac!

Tokiwadai Is Targeted✓

Oct 16, 2009★ 6.6

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 attacks?

Urban Legends✓

Oct 23, 2009★ 6.8

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’s powers.

A Certain Pair of New Trainees✓

Oct 30, 2009★ 6.6

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 between friends.

Everyone is Proactive When it Comes to This✓

Nov 6, 2009★ 6.4

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 on her own.

Abilities and Powers✓

Nov 13, 2009★ 6.6

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 shopping!

Nov 20, 2009★ 6.4

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 slips into a coma!

Majority Report✓

Nov 27, 2009★ 6.6

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 dangerous consequences.

Silent Majority✓

Dec 4, 2009★ 6.6

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 one!

Dec 11, 2009★ 6.6

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 with a monster!

Dec 18, 2009★ 6.6

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 creature’s rampage!

A Bikini Divides the Eyeline Between Top and Bottom, But a One-piece Shows Off the Figure, So They Only Flatter the Slender✓

Dec 25, 2009★ 6.2

The Swim Club recruits Misaka and the gang to strut their stuff as swimsuit models! Later, after taking a break from posing and primping, the girls work together to make some curry.

Special Workshop✓

Jan 8, 2010★ 6.4

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.

Jan 15, 2010★ 6.4

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 time to stop the confrontation.

Academy City✓

Jan 22, 2010★ 6.6

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 Kurozuma?

Tsuzuri's Summer Vacation✓

Jan 29, 2010★ 6.8

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.

Asunaro Park✓

Feb 6, 2010★ 6.4

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 subject of marriage.

Midsummer Festival✓

Feb 12, 2010★ 6.4

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 nerves don’t get the best of her!

Feb 19, 2010★ 6.4

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.

Feb 26, 2010★ 6.4

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.

Mar 5, 2010★ 6.4

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 scientist is out on bail and working with the Frog Doctor.

What Is It You See in Your Eyes Right Now?✓

Mar 12, 2010★ 6.8

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 jeopardized by Therestina’s activities.

Dear My Friends✓

Mar 20, 2010★ 6.8

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’s up to Saten to save the day.

Frequently asked

How many seasons does A Certain Scientific Railgun have?

A Certain Scientific Railgun has 4 seasons with 73 episodes in total.

Is A Certain Scientific Railgun still on the air?

A Certain Scientific Railgun has ended and is no longer in production.

What network airs A Certain Scientific Railgun?

A Certain Scientific Railgun airs on TOKYO MX.

When did A Certain Scientific Railgun first air?

A Certain Scientific Railgun first aired on October 2, 2009.

Cast

Rina Sato

Rina Sato

Mikoto Misaka (voice)

Satomi Arai

Satomi Arai

Kuroko Shirai (voice)

Aki Toyosaki

Aki Toyosaki

Kazari Uiharu (voice)

Kanae Itou

Kanae Itou

Ruiko Saten (voice)

Minako Kotobuki

Minako Kotobuki

Mitsuko Kongou (voice)

Atsuko Tanaka

Atsuko Tanaka

Harumi Kiyama (voice)

Atsushi Abe

Atsushi Abe

Toma Kamijo (voice)

Kana Ueda

Kana Ueda

Mii Konori (voice)

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