# List of A Certain Scientific Railgun episodes

A Certain Scientific Railgun is an anime television series based on the manga series of the same name, which in itself is a spin-off to Kazuma Kamachi's light novel series A Certain Magical Index. The manga is serialized in Dengeki Daioh and is written by Kazuma Kamachi and illustrated by Motoi Fuyukawa [ja]. The series is set in Academy City before and during the events of A Certain Magical Index, in which the plot focuses on Mikoto Misaka, an electromaster who is the third strongest esper in Academy City, along with her friends: Kuroko Shirai, a teleporter and Mikoto's roommate; Kazari Uiharu, Kuroko's partner in Judgment, the city's public safety committee; and Ruiko Saten, Kazari's friend and classmate.
The anime series is produced by J.C.Staff and directed by Tatsuyuki Nagai, with series composition by Seishi Minakami, music by Maiko Iuchi, character design by Yuichi Tanaka and art and sound direction by Tomonori Kuroda and Jin Aketagawa respectively. The first season began airing on Tokyo MX from October 3, 2009 to March 20, 2010, and were later aired days later on Chiba Television Broadcasting, Mainichi Broadcasting System, Television Saitama and Television Kanagawa. The first twelve episodes of the series closely follow the manga its based on, with a few changes and several anime-original episodes and characters, while the second half of the first season is an entirely original plot written by Kazuma Kamachi. The season released on eight home media volumes, containing three episodes each and a mini A Certain Magical Index novel written by Kazuma Kamachi and illustrated by Haimura Kiyotaka which features Kaori Kanzaki as the protagonist, were released since February 7, 2010. A five-minute bonus animation was included with the official visual book of the series, which released on July 24, 2010. An original video animation (OVA) was released shortly thereafter on October 29, 2010. Funimation licensed the series in North America and released the season on home media in April 2013. A second season, titled A Certain Scientific Railgun S, aired from April 12 to September 27, 2013, and was simulcast by Funimation, who released the season on home media between July and August 2014. Another visual book containing another bonus animation was released on March 27, 2014. A third season, titled A Certain Scientific Railgun T, aired from January 10 to September 25, 2020. A fourth season was announced during the Dengeki Bunko Winter Festival 2025 livestream event held on February 16, 2025.

## Series overview

| Season | Episodes | Episodes | Originally released | Originally released | Originally released |
| Season | Episodes | Episodes | First released | Last released | Network |
| 1 | 24 | 24 | October 3, 2009 (2009-10-03) | March 20, 2010 (2010-03-20) | Tokyo MX |
| 2 | 24 | 24 | April 12, 2013 (2013-04-12) | September 27, 2013 (2013-09-27) | AT-X |
| 3 | 25 | 25 | January 10, 2020 (2020-01-10) | September 25, 2020 (2020-09-25) | AT-X |

## Episodes
### Season 1 (2009–10)

| No. overall | No. in season | Title | Directed by | Written by | Storyboarded by | Original release date |
| 1 | 1 | "Electromaster" Transliteration: "Erekutoromasutā" (Japanese: 電撃使い（エレクトロマスター）) | Tatsuyuki Nagai | Seishi Minakami [ja] | Tatsuyuki Nagai | October 3, 2009 (2009-10-03) |
| 2 | 2 | "When Working Under a Hot Sun, Rehydration Is Essential" Transliteration: "Entenka no Sagyō ni wa Suibun Hokyū ga Hissu desu no yo" (Japanese: 炎天下の作業には水分補給が必須ですのよ) | Tamaki Nakatsu | Hiroshi Ōnogi & Seishi Minakami | Tamaki Nakatsu | October 10, 2009 (2009-10-10) |
| 3 | 3 | "Tokiwadai Is Targeted" Transliteration: "Nerawareta Tokiwadai" (Japanese: ねらわれた常盤台) | Takashi Kawabata | Kurasumi Sunayama | Tetsuya Yanagisawa | October 17, 2009 (2009-10-17) |
| 4 | 4 | "Urban Legends" Transliteration: "Toshi Densetsu" (Japanese: 都市伝説) | Hideki Tachibana | Miya Asakawa [ja] | Hideki Tachibana | October 24, 2009 (2009-10-24) |
| 5 | 5 | "A Certain Pair of New Trainees" Transliteration: "Toaru Futari no Shinjin Kenshū" (Japanese: とある二人の新人研修) | Tomohiro Kamitani | Nobuhiko Tenkawa | Tomohiro Kamitani | October 31, 2009 (2009-10-31) |
| 6 | 6 | "Everyone Is Proactive When It Comes to This" Transliteration: "Kō Iu Koto ni wa Minna Sekkyokuteki Nan desu yo" (Japanese: こういうことにはみんな積極的なんですよ) | Toshio Ishikawa | Mariko Kunisawa | Yūichi Nihei | November 7, 2009 (2009-11-07) |
| 7 | 7 | "Abilities and Powers" Transliteration: "Nōryoku to Chikara" (Japanese: 能力とちから) | Kenichi Yatagai | Michiko Itō | Kenichi Yatagai | November 14, 2009 (2009-11-14) |
| 8 | 8 | "Level Upper" Transliteration: "Reberu Appā" (Japanese: 幻想御手（レベルアッパー）) | Makoto Sokuza | Nobuhiko Tenkawa | Masayuki Miyaji | November 21, 2009 (2009-11-21) |
| 9 | 9 | "Majority Report" Transliteration: "Majoriti・Ripōto" (Japanese: マジョリティ・リポート) | Shigeyasu Yamauchi [ja] | Hiroshi Ōnogi | Shigeyasu Yamauchi | November 28, 2009 (2009-11-28) |
| 10 | 10 | "Silent Majority" Transliteration: "Sairento・Majoriti" (Japanese: サイレント・マジョリティ) | Daisuke Takashima | Hiroshi Ōnogi | Tsuneo Kobayashi | December 5, 2009 (2009-12-05) |
| 11 | 11 | "Dr. Kiyama" Transliteration: "Kiyama-sensei" (Japanese: 木山せんせい) | Kei Umabiki | Kurasumi Sunayama | Yūichi Nihei | December 12, 2009 (2009-12-12) |
| 12 | 12 | "AIM Burst" Transliteration: "ĒMU Bāsuto" (Japanese: AIMバースト) | Hideki Tachibana | Seishi Minakami | Michio Fukuda [ja] | December 19, 2009 (2009-12-19) |
| 13 | 13 | "A Bikini Divides the Eyeline Between Top and Bottom, but a One-Piece Shows off the Figure, so They Only Flatter the Slender" Transliteration: "Bikini wa Mesen ga Jōge ni Wakaremasu kedo Wanpīsu wa Karada no Rain ga Demasu kara Hosoi Kata Shika Niawanain desu yo" (Japanese: ビキニは目線が上下に分かれますけどワンピースは身体のラインが出ますから細い方しか似合わないんですよ) | Tomohiro Kamitani | Michiko Itō | Tamaki Nakatsu | December 26, 2009 (2009-12-26) |
| 14 | 14 | "Special Workshop" Transliteration: "Tokubetsu Kōshū" (Japanese: 特別講習) | Takashi Kawabata | Miya Asakawa | Masayuki Miyaji | January 9, 2010 (2010-01-09) |
| 15 | 15 | "Skill Out" Transliteration: "Sukiru Auto" (Japanese: スキルアウト) | Makoto Sokuza | Hiroshi Ōnogi | Yūichi Nihei | January 16, 2010 (2010-01-16) |
| 16 | 16 | "Academy City" Transliteration: "Gakuen-toshi" (Japanese: 学園都市) | Daisuke Takashima | Hiroshi Ōnogi | Yūichi Nihei | January 23, 2010 (2010-01-23) |
| 17 | 17 | "Tsuzuri's Summer Vacation" Transliteration: "Natsuyasumi no Tsuzuri" (Japanese: 夏休みのつづり) | Kei Umabiki | Kurasumi Sunayama | Masato Suma | January 30, 2010 (2010-01-30) |
| 18 | 18 | "Asunaro Park" Transliteration: "Asunaro-en" (Japanese: あすなろ園) | Yoshitaka Koyama [ja] | Mariko Kunisawa | Yoshitaka Koyama | February 6, 2010 (2010-02-06) |
| 19 | 19 | "Midsummer Festival" Transliteration: "Seika-sai" (Japanese: 盛夏祭) | Hideki Tachibana | Nobuhiko Tenkawa | Hideki Tachibana | February 13, 2010 (2010-02-13) |
| 20 | 20 | "Poltergeist" Transliteration: "Porutāgaisuto" (Japanese: 乱雑開放（ポルターガイスト）) | Masato Jinbo | Miya Asakawa | Yūichi Nihei | February 20, 2010 (2010-02-20) |
| 21 | 21 | "Voices" Transliteration: "Koe" (Japanese: 声) | Tomohiro Kamitani | Seishi Minakami | Tomohiro Kamitani | February 27, 2010 (2010-02-27) |
| 22 | 22 | "Level 6 (The One Who Obtains the Power of God Whilst Still Possessing a Mortal Body)" Transliteration: "Reberu Shikkusu (Kami Naranu Mi ni te Tenjō no Ishi ni Tadoritsuku Mono)" (Japanese: レベル6（神ならぬ身にて天上の意志に辿り着くもの）) | Ken'ichi Kasai | Kurasumi Sunayama | Masato Suma & Yūichi Nihei | March 6, 2010 (2010-03-06) |
| 23 | 23 | "What Is It You See in Your Eyes Right Now?" Transliteration: "Ima, Anata no Me ni wa Nani ga Mietemasu ka?" (Japanese: いま、あなたの目には何が見えてますか?) | Daisuke Takashima | Miya Asakawa | Naoto Hosoda [ja] | March 13, 2010 (2010-03-13) |
| 24 | 24 | "Dear My Friends" | Tatsuyuki Nagai | Seishi Minakami | Tatsuyuki Nagai | March 20, 2010 (2010-03-20) |

### Season 2: S (2013)

| No. overall | No. in season | Title | Directed by | Written by | Storyboarded by | Original release date |
| 25 | 1 | "Railgun" Transliteration: "Rērugan" (Japanese: 超電磁砲（レールガン）) | Tatsuyuki Nagai | Seishi Minakami [ja] | Tatsuyuki Nagai | April 12, 2013 (2013-04-12) |
| 26 | 2 | "Critical" Transliteration: "Kuritikaru" (Japanese: 寿命中断（クリティカル）) | Daisuke Takashima | Seishi Minakami | Shigehito Takayanagi | April 19, 2013 (2013-04-19) |
| 27 | 3 | "Project Radio Noise" Transliteration: "Redio Noizu Keikaku" (Japanese: 超電磁砲量産計画（レディオノイズけいかく）) | Masahiro Sonoda | Seishi Minakami | Yūichi Nihei | April 26, 2013 (2013-04-26) |
| 28 | 4 | "Sisters" Transliteration: "Shisutāzu" (Japanese: 妹達（シスターズ）) | Katsushi Sakurabi | Kurasumi Sunayama | Yasuo Muroi | May 3, 2013 (2013-05-03) |
| 29 | 5 | "Project Level 6 Shift" Transliteration: "Reberu Shikkusu Shifuto Keikaku" (Japanese: 絶対能力進化計画（レベル6シフトけいかく）) | Daisuke Takashima | Seishi Minakami | Yūichi Nihei | May 10, 2013 (2013-05-10) |
| 30 | 6 | "I... Can See All of You" Transliteration: "Atashi... Minna no Koto Miete Irukara" (Japanese: あたし…みんなのこと見えてるから) | Kazuhiko Ishii | Seishi Minakami | Michio Fukuda [ja] | May 17, 2013 (2013-05-17) |
| 31 | 7 | "I... I Want to Be of Help to You, Sissy" Transliteration: "Onee-sama no Chikara ni Naritai desu no" (Japanese: お姉さまの力になりたいですの) | Kouhei Hatano | Yasunori Yamada | Shigehito Takayanagi | May 24, 2013 (2013-05-24) |
| 32 | 8 | "Item" Transliteration: "Aitemu" (Japanese: Item（アイテム）) | Katsushi Sakurabi | Jukki Hanada | Yasuo Muroi | May 31, 2013 (2013-05-31) |
| 33 | 9 | "AIM Stalker" Transliteration: "ĒMU Sutōkā" (Japanese: 能力追跡（AIMストーカー）) | Naoyuki Konno [ja] | Yasunori Yamada | Naoyuki Konno | June 7, 2013 (2013-06-07) |
| 34 | 10 | "Meltdowner" Transliteration: "Merutodaunā" (Japanese: 原子崩し（メルトダウナー）) | Takashi Ikehata [ja] | Michihiro Tsuchiya [ja] | Yūichi Nihei | June 14, 2013 (2013-06-14) |
| 35 | 11 | "The Vending Machine" Transliteration: "Jidō Hanbaiki" (Japanese: 自動販売機) | Kazuhiko Ishii | Kurasumi Sunayama | Tatsuyuki Nagai | June 21, 2013 (2013-06-21) |
| 36 | 12 | "Tree Diagram" Transliteration: "Tsurī Daiaguramu" (Japanese: 樹形図の設計者（ツリーダイアグラム）) | Masahiro Sonoda | Jukki Hanada | Yūichi Nihei | June 28, 2013 (2013-06-28) |
| 37 | 13 | "Accelerator" Transliteration: "Akuserarēta" (Japanese: 一方通行（アクセラレータ）) | Kensuke Ishikawa | Michihiro Tsuchiya | Kensuke Ishikawa | July 5, 2013 (2013-07-05) |
| 38 | 14 | "The Promise" Transliteration: "Yakusoku" (Japanese: 約束) | Daisuke Takashima | Jukki Hanada | Kiyoko Sayama | July 12, 2013 (2013-07-12) |
| 39 | 15 | "Kamijō Tōma" (Japanese: 最弱（かみじょうとうま）) | Katsushi Sakurabi | Kurasumi Sunayama | Satoshi Iwataki [ja] | July 19, 2013 (2013-07-19) |
| 40 | 16 | "Sisterhood" Transliteration: "Shimai" (Japanese: 姉妹) | Ken'ichi Kasai | Yasunori Yamada | Yoshimitsu Ohashi [ja] | July 26, 2013 (2013-07-26) |
| 41 | 17 | "Study Group" Transliteration: "Benkyō-kai" (Japanese: 勉強会) | Takashi Ikehata | Michihiro Tsuchiya | Kiyoko Sayama | August 2, 2013 (2013-08-02) |
| 42 | 18 | "Moving" Transliteration: "O Hikkoshi" (Japanese: お引越し) | Daisuke Takashima | Kurasumi Sunayama | Yūichi Nihei | August 16, 2013 (2013-08-16) |
| 43 | 19 | "Academy City Research Exhibit Assembly" Transliteration: "Gakuen-toshi Kenkyū Happyōkai" (Japanese: 学園都市研究発表会) | Keiji Gotoh | Hiroyuki Yoshino | Keiji Gotoh | August 23, 2013 (2013-08-23) |
| 44 | 20 | "Febri" Transliteration: "Feburi" (Japanese: フェブリ) | Yōhei Suzuki [ja] | Yasunori Yamada | Kiyoko Sayama | August 30, 2013 (2013-08-30) |
| 45 | 21 | "Darkness" Transliteration: "Yami" (Japanese: 闇) | Katsushi Sakurabi | Michihiro Tsuchiya | Yūichi Nihei | September 6, 2013 (2013-09-06) |
| 46 | 22 | "STUDY" | Daisuke Takashima | Michihiro Tsuchiya | Kiyoko Sayama | September 13, 2013 (2013-09-13) |
| 47 | 23 | "Dawn of a Revolution (Silent Party)" Transliteration: "Kakumei Mimei (Sairento Pātī)" (Japanese: 革命未明（Silent Party）) | Takashi Ikehata | Hiroyuki Yoshino | Yoshimitsu Ohashi & Yūichi Nihei | September 20, 2013 (2013-09-20) |
| 48 | 24 | "Eternal Party" | Tatsuyuki Nagai & Naoyuki Konno | Hiroyuki Yoshino | Tatsuyuki Nagai & Naoyuki Konno | September 27, 2013 (2013-09-27) |

### Season 3: T (2020)

| No. overall | No. in season | Title | Directed by | Written by | Storyboarded by | Original release date |
| 49 | 1 | "Super-Powered (Level 5)" Transliteration: "Chō Nōryoku-sha (Reberu Faibu)" (Japanese: 超能力者（レベル5）) | Kazuki Horiguchi | Shōgo Yasukawa | Tatsuyuki Nagai | January 10, 2020 (2020-01-10) |
| 50 | 2 | "The Daihasei Festival" Transliteration: "Daihasei-sai" (Japanese: 大覇星祭) | Yoshihiro Mori | Shōgo Yasukawa | Yūichi Nihei | January 17, 2020 (2020-01-17) |
| 51 | 3 | "Balloon Hunter" Transliteration: "Barūn Hantā" (Japanese: バルーンハンター) | Yūsuke Onoda | Shōgo Yasukawa | Shingo Yuki | January 24, 2020 (2020-01-24) |
| 52 | 4 | "Tampering" Transliteration: "Kaizan" (Japanese: 改竄) | Makoto Sokuza | Shōgo Yasukawa | N/A | January 31, 2020 (2020-01-31) |
| 53 | 5 | "Trust" Transliteration: "Shinrai" (Japanese: 信頼) | Toshikazu Hashimoto | Atsuo Ishino | Toshikazu Hashimoto | February 7, 2020 (2020-02-07) |
| 54 | 6 | "The Battle Begins" Transliteration: "Kaisen" (Japanese: 開戦) | Kōsaku Taniguchi & Yūsuke Onoda | Hiroki Uchida [ja] | Kōichirō Sohtome [ja] & Tatsuyuki Nagai | February 14, 2020 (2020-02-14) |
| 55 | 7 | "Auribus oculi fideliores sunt. (The eyes are more trustworthy than the ears)" Transliteration: "Ōribazu okarī fideriarezu santo. (Miru koto wa kiku koto yori shinjiru ni ataisuru)" (Japanese: Auribus oculi fideliores sunt.（見ることは聞くことより信じるに値する）) | Yoshihiro Mori | Shinichi Inotsume [ja] | Yūichi Nihei | February 28, 2020 (2020-02-28) |
| 56 | 8 | "Railgun × Mental Out" Transliteration: "Rērugan × Mentaru Auto" (Japanese: 超電磁砲（レールガン）×心理掌握（メンタルアウト）) | Makoto Sokuza | Shōgo Yasukawa | Kouichi Takada | March 20, 2020 (2020-03-20) |
| 57 | 9 | "Kōzaku Mitori" (Japanese: 警策看取（こうざくみとり）) | Ryūta Kawahara | Shōgo Yasukawa | Ryūta Kawahara | March 27, 2020 (2020-03-27) |
| 58 | 10 | "Clone Dolly" Transliteration: "Kurōn Dorī" (Japanese: 才人工房（クローンドリー）) | Yuuki Nagasawa & Takayuki Kuriyama | Shinichi Inotsume | Yūichi Nihei | April 3, 2020 (2020-04-03) |
| 59 | 11 | "Joining the Battle" Transliteration: "Sansen" (Japanese: 参戦) | Yōsuke Yamamoto | Atsuo Ishino | Hideki Tachibana & Kazuki Horiguchi | April 10, 2020 (2020-04-10) |
| 60 | 12 | "Exterior" Transliteration: "Ekusuteria" (Japanese: 外装代脳（エクステリア）) | Yoshihiro Mori | Hiroki Uchida | Hideki Tachibana & Tetsuya Yanagisawa | April 17, 2020 (2020-04-17) |
| 61 | 13 | "SYSTEM (Those Who Arrive at Heaven's Will in an Only Human Body)" Transliteration: "SHISUTEMU (Kaminaranumi nite Tenjō no Ishi ni Tadoritsuku Mono)" (Japanese: SYSTEM（神ならぬ身にて天上の意志に辿り着くもの）) | Daizou Yase & Akari Ranzaki | Shōgo Yasukawa | Kazuo Takigawa, Kōichirō Sohtome & Tatsuyuki Nagai | May 1, 2020 (2020-05-01) |
| 62 | 14 | "Dragon Strike (Jaw of the Dragon King)" Transliteration: "Doragon Sutoraiku (Ryūō no Ago)" (Japanese: 竜王の顎（ドラゴンストライク）) | Shuuji Miyazaki | Shōgo Yasukawa | Hideki Tachibana | May 15, 2020 (2020-05-15) |
| 63 | 15 | "Promise" Transliteration: "Yakusoku" (Japanese: やくそく) | Kiyoko Sayama | Shōgo Yasukawa | Kiyoko Sayama | May 22, 2020 (2020-05-22) |
| 64 | 16 | "Dream Ranker" Transliteration: "Dorīmu Rankā" (Japanese: 天賦夢路（ドリームランカー）) | Kazuki Horiguchi & Makoto Sokuza | Shinichi Inotsume | Kazuki Horiguchi | July 24, 2020 (2020-07-24) |
| 65 | 17 | "Precognition" Transliteration: "Yochi" (Japanese: 予知) | Yoshihiro Mori | Shinichi Inotsume | Yūichi Nihei | July 31, 2020 (2020-07-31) |
| 66 | 18 | "Bust Upper" Transliteration: "Basuto Appā" (Japanese: 巨乳御手（バストアッパー）) | Sho Kitamura | Shōgo Yasukawa | Yoshiki Yamakawa | August 7, 2020 (2020-08-07) |
| 67 | 19 | "Strange Coincidence" Transliteration: "Kien" (Japanese: 奇縁) | Akari Ranzaki | Shōgo Yasukawa | Kouichi Takada | August 14, 2020 (2020-08-14) |
| 68 | 20 | "Ha det bra" | Makoto Sokuza, Takayuki Kuriyama & Yuuki Nagasawa | Hiroki Uchida | Yūichi Nihei | August 21, 2020 (2020-08-21) |
| 69 | 21 | "Doppelganger" Transliteration: "Dopperugengā" (Japanese: ドッペルゲンガー) | Shuuji Miyazaki | Shinichi Inotsume | Shuuji Miyazaki | August 28, 2020 (2020-08-28) |
| 70 | 22 | "Scavenger" Transliteration: "Sukabenjā" (Japanese: 屍喰部隊（スカベンジャー）) | Katsushi Sakurabi | Shinichi Inotsume | Yoshimitsu Ohashi | September 4, 2020 (2020-09-04) |
| 71 | 23 | "Possession" Transliteration: "Hyōi" (Japanese: 憑依) | Makoto Sokuza, Kazuki Horiguchi & Tetsuro Tanaka | Shōgo Yasukawa | Kouichi Takada, Tōru Yoshida [ja] & Tatsuyuki Nagai | September 11, 2020 (2020-09-11) |
| 72 | 24 | "Diffusion" Transliteration: "Kakusan" (Japanese: 拡散) | Tetsuro Tanaka, Akari Ranzaki, & Yoshihiro Mori | Shōgo Yasukawa | Takashi Iida & Tatsuyuki Nagai | September 18, 2020 (2020-09-18) |
| 73 | 25 | "My Dear Friends" Transliteration: "Watashi no, Taisetsu na Tomodachi" (Japanese: 私の、大切な友達) | Tatsuyuki Nagai | Shōgo Yasukawa | Tatsuyuki Nagai | September 25, 2020 (2020-09-25) |

## OVAs

| No. | Title | Directed by | Written by | Chief animation directed by | Original release date |
| 13' | "Being a Photo Shoot Model Under the Sun Isn't Easy, You Know." Transliteration: "Entenka no Satsuei Moderu mo Raku Ja Arimasen wa ne." (Japanese: 炎天下の撮影モデルも楽じゃありませんわね。) | Masato Jinbo | Shōgo Yasukawa | Naoto Nakamura | July 24, 2010 (2010-07-24) |
| During the photo shoot, Kuroko attempts to seduce Mikoto by swapping a suntan lotion Kazari was rubbing on her with one filled with aphrodisiacs. However, her plan backfires when Ruiko takes Mikoto's place, leading her to become aroused instead and lecherously chase after Kazari. Mikoto discovers that Kuroko is the culprit and punishes her, and when the four of them return, they find Mitsuko had accidentally used Kuroko's lotion on her pet snake. ||||||
| 1 | "Since Misaka-san Is the Center of Attention Right Now..." Transliteration: "Misaka-san wa Ima Chūmoku no Mato desukara" (Japanese: 御坂さんはいま注目の的ですから) | Directed by : Daisuke Takashima Storyboarded by : Tatsuyuki Nagai | Seishi Minakami [ja] | Naoto Nakamura | October 29, 2010 (2010-10-29) |
| One day, shortly following the events of the Level Upper incident, Mikoto starts to feel an eerie feeling like someone is stalking her. As Mikoto continues to feel this discomforting sensation everywhere, she starts to become very paranoid and afraid. Looking into a related rumor, Kuroko and the others learn other students have also been experiencing the same sensation. While Ruiko and Konori take Mikoto to the public bath, where Ruiko gives her some encouragement, Kuroko and Kazari interview Mitsuko, Maaya and Kinuho, whose senior is also one of the victims. Thanks to Ruiko's advice and Kuroko's research, Mikoto finds the culprit behind the sensations to be Asako Jonan, an Anti-Skill officer and former Nagatenjōki Academy teacher. Having been fired from her teaching job, supposedly due to not being able to produce any Level 5 espers, Asako blamed Tokiwadai and used a device to produce special electromagnetic waves and cause discomfort in electromasters. Asako tries to escape but, thanks to Ruiko's assistance, she is quickly captured by Mikoto and the Anti-Skills. As Mikoto rewards her friends for their help, Kazari unintentionally reveals Kuroko was also legitimately stalking Mikoto at the same time, prompting a swift punishment. ||||||
| 2 | "All the Important Things I Learned in a Bathhouse" Transliteration: "Daiji na Koto wa Zenbu Sentō ni Osowatta" (Japanese: 大事なことはぜんぶ銭湯に教わった) | Yōhei Suzuki | N/A | Kiyoshi Komatsubara | March 27, 2014 (2014-03-27) |
| As the local bathhouse comes under threat of being closed down, Mii enlists the help of Mikoto, Kuroko, Kazari, and Ruiko to help promote interest, coming up with a Mikoto-powered "electric bath" to bring in more customers. At first, the baths become a success which attracts the attention of Erii, Mitsuko, Wannai, Atsuki, Yomikawa, Tsuzuri, Komoe, Shizuri, Frenda, Saiai, Rikō, and the Dorm Supervisor. However, the baths are almost ruined after Kuroko adds too much bubble bath soap in one of her schemes to seduce Mikoto. After the customers go home, the girls celebrate by having a bath and drinking milk. ||||||

## Shorts

These shorts are released as bonus animation features on Japanese home media volumes for each season.
| No. | Title | Directed by | Animation directed by | Original release date |
| 1 | "Much More Railgun" Transliteration: "Motto Marutto Rērugan" (Japanese: もっとまるっと超電磁砲（レールガン）) | Shingo Fukuyo | Shigeki Kimoto & Shinsuke Yanagi | February 7, 2010 (2010-02-07) |
| A series of outtakes and bizarre sketches as experienced by the characters of the anime. Mikoto and her friends discuss internet rumors that the Dorm Supervisor was once a commando. Ruiko's class discuss Schrödinger's cat where the cat in question becomes a Palmtop Tiger. Yomikawa, Komoe and Tsuzuri have Nabe while Yomikawa talks about people and things which start with "Jan" like Jean-Claude Van Damme. Meanwhile, the gang wonders about Academy City's wind turbines and Mikoto makes a PSA about conserving electricity. |||||
| 2 | "Much More Railgun II" Transliteration: "Motto Marutto Rērugan Ni" (Japanese: もっとまるっと超電磁砲（レールガン） II) | Shingo Fukuyo | Tomohiro Kamitani | May 28, 2010 (2010-05-28) |
| More outtakes and bizarre sketches as experienced by the characters. Kuroko gives some peculiar lessons to her class. Ruiko and Kuroko get brainfreeze from eating their frozen treats. Harumi tries to explain what AIM Burst is but is interrupted by Mikoto and Kazari. Mitsuko is fishing while Kazari narrates. The gang drinks milk while watching the sunset. Mikoto tells her friends their lives are being watched by an unknown audience. |||||
| 3 | "Much More Railgun III" Transliteration: "Motto Marutto Rērugan San" (Japanese: もっとまるっと超電磁砲（レールガン） III) | Shingo Fukuyo | Yukie Hiyamizu | July 24, 2013 (2013-07-24) |
| Ruiko uses her nose to smell if Mikoto's lunches have gone bad. Shinobu teaches Mikoto some English words and punishes her when she gets them wrong. Misaka 9982 jokingly plays a Kōan on Mikoto. Shinobu gives a Misaka clone expert gaming knowledge which ends up making her a hardcore gamer. Accelerator and Misaka 9982 discuss their voice acting careers since starting in 2006. Mikoto and the others failed to notice that Kazari is with them, due to the latter not wearing her flower headband. |||||
| 4 | "Much More Railgun IV" Transliteration: "Motto Marutto Rērugan Yon" (Japanese: もっとまるっと超電磁砲（レールガン） IV) | Shingo Fukuyo | Kiyoshi Komatsubara | November 27, 2013 (2013-11-27) |
| Mikoto suspects Academy City may come under attack by Kaijus from a certain movie and how they must prepare themselves. The girls wonder if Turtle blood really has aphrodisiac effects and Misaka 10032-tan replaces Index-tan's role on Toma's head. |||||
| 5 | "Much More Railgun V" Transliteration: "Motto Marutto Rērugan Go" (Japanese: もっとまるっと超電磁砲（レールガン） V) | Kazuki Horiguchi | Mineko Ueda | April 30, 2020 (2020-04-30) |
| 6 | "Much More Railgun VI" Transliteration: "Motto Marutto Rērugan Roku" (Japanese: もっとまるっと超電磁砲（レールガン） VI) | Kazuki Horiguchi | N/A | October 9, 2020 (2020-10-09) |