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Season guide

A Certain Scientific Railgun: A Certain Scientific Railgun T

25 episodes Premiered Jan 10, 2020 Updated Oct 24, 2026

The third season of A Certain Scientific Railgun, titled Toaru Kagaku no Railgun T, centers on the Daihasei Festival, a major seven-day sports competition held within Academy City. Mikoto Misaka, known as the Ace of Tokiwadai, participates in the event alongside her peers from the prestigious Tokiwadai Middle School. While the festival is intended as a celebration, the narrative quickly shifts as figures operating fr

Previously on A Certain Scientific Railgun

Season 3 Lore Primer

Key plot threads, lore context, and character stakes you need to remember before diving into this season.

  • ⚡ Academy City is a techno-metropolis populated by students known as Espers who possess supernaturally powerful abilities.
  • ⚡ Mikoto Misaka is a student at Tokiwadai Middle School recognized for her electro-manipulation skills and railgun projectile movement.
  • ⚡ Shirai Kuroko is a student at Tokiwadai Middle School who serves as Mikoto Misaka's roommate and friend.
  • ⚡ The series follows the experiences of Mikoto and her friends as they navigate life and various incidents within Academy City.
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Season overview

The third season of A Certain Scientific Railgun, titled Toaru Kagaku no Railgun T, centers on the Daihasei Festival, a major seven-day sports competition held within Academy City. Mikoto Misaka, known as the Ace of Tokiwadai, participates in the event alongside her peers from the prestigious Tokiwadai Middle School. While the festival is intended as a celebration, the narrative quickly shifts as figures operating from the shadows initiate a new threat that endangers both Mikoto and the entirety of Academy City. Following the conclusion of the Daihasei Festival, the scope of the story expands as Mikoto and her friends become entangled in a series of incidents involving mysterious special cards. These cards are purported to have the ability to record the dreams of individuals, leading the protagonists into further conflict. Throughout these events, the series continues to explore the lives of students within the techno-metropolis of Academy City, where residents possess supernaturally powerful abilities. The season balances the competitive atmosphere of the sports festival with the escalating dangers posed by hidden agendas and the investigation into the dream-recording technology, forcing Mikoto to navigate these complex challenges alongside her companions.

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Season 3 Episodes

Episode Guide

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Binge Efficiency Engine

Season 3: Filler vs. Essential Canon

Filter episodes by narrative weight. Focus on essential mytharc and skip standalone side quests.

16%
84%
Mytharc (4): Crucial lore & season climaxes
Core (21): Character development & subplots
Side Quest (0): Standalone / filler
S3·E1 Mytharc

Super-powered (Level 5)

Jan 10, 2020 · 23 min

Academy City's Daihasei Festival is approaching, and the festival's steering committee is charged with recruiting at least two Level 5s to take the athlete's pledge during the open

S3·E2 Core

The Daihasei Festival

Jan 17, 2020 · 23 min

As the Daihasei Festival begins, Uiharu and Saten enjoy themselves, while Kuroko sees to her Judgment duties. Mikoto and Kongo run an eventful three-legged race against teams from

S3·E3 Core

Balloon Hunter

Jan 24, 2020 · 23 min

The Tokiwadai team competes in the Balloon Hunter event, but due to a case of mistaken identity, one of the Sisters substitutes for Mikoto. Yoshio Baba feeds the other school's tea

S3·E4 Core

Tampering

Jan 31, 2020 · 23 min

Saten's quest for Shadow Metal ends up landing her in trouble. Uiharu notices something amiss with the website Saten was browsing. Mikoto learns that Wannai did not get her gym uni

S3·E5 Core

Trust

Feb 7, 2020 · 23 min

With her closest friends now giving her the cold shoulder, Mikoto feels isolated and helpless, but finds a surprise ally in Kongo. Kongo tries to track down any clues that will lea

S3·E6 Core

The Battle Begins

Feb 14, 2020 · 2 min

Saten carries an injured Kongo to safety, while Awatsuki and Wannai tackle Yoshio Baba and his robotic Great Danes. Mikoto spots Saten with Kongo in an ambulance, blames herself fo

S3·E7 Core

Auribus oculi fideliores sunt

Feb 28, 2020 · 23 min

With Kongo out of danger, Awatsuki finishes the task of having her psychometrist friend probe the kitten's memories. What Saten hears gives her pause, and she turns to Kuroko for a

S3·E8 Mytharc

Railgun ✕ Mental Out

Mar 20, 2020 · 23 min

With the assistance of her friends, Mikoto identifies the location from the website data that Uiharu recovered. Upon arriving at the location, Mikoto finds Shokuho waiting for her,

S3·E9 Core

Kozaku Mitori

Mar 27, 2020 · 23 min

Mikoto and Shokuho continue pursuing Gensei Kihara using their own individual methods. Kuroko attempts to identify the girl who abducted Uiharu and Misuzu. Saten decides to investi

S3·E10 Core

Clone Dolly

Apr 3, 2020 · 23 min

Shokuho and Mikoto find themselves in a traffic jam, and Shokuho demonstrates a tremendous example of her ability. The background behind the Exterior project is revealed, as well a

S3·E11 Core

Joining the Battle

Apr 10, 2020 · 23 min

Kozaku uses Exterior to make her way into Mikoto's mind, convincing her to attack the building without windows. Before she can go after Gensei, Shokuho must contend with Kozaku's p

S3·E12 Core

Exterior

Apr 17, 2020 · 23 min

Kamijo and Sogiita find that at best, they can only slow down Mikoto's transformation. Kuroko continues to search for Kozaku while dodging her puppet. Gensei pursues Shokuho for th

S3·E14 Core

Dragon Strike (Jaw of the Dragon King)

May 15, 2020 · 23 min

Gensei has fallen victim to Shokuho's cunning, but Mikoto is still struggling to contain her power. Kamijo decides that he must help her at any cost.

S3·E15 Core

Promise

May 22, 2020 · 23 min

A young Kozaku grins and bears her way through her youth in an Academy City research institution, where she befriends Dolly, one of the other girls there. But when Kozaku learns th

S3·E16 Core

Dream Ranker

Jul 24, 2020 · 23 min

Mikoto is introduced to Indian Poker, a new fad that is sweeping Academy City, which allows people to share their dreams, by Shokuho Clique member Hokaze. Saten tells Uiharu about

S3·E17 Core

Precognition

Jul 31, 2020 · 23 min

To demonstrate the authenticity of his predictions, Miyama sends Kuroko out with foreknowledge of several incidents that are about to take place. But when two cases occur in close

S3·E18 Core

Bust Upper

Aug 7, 2020 · 23 min

After Saten demonstrates skills she acquired through Indian Poker, Mikoto comes upon a Trader who happens to have a card she is keenly interested in. However, ITEM operative Kinuha

S3·E19 Core

Strange Coincidence

Aug 14, 2020 · 23 min

When Saten buys the last of the mackerel at the supermarket, Frenda pesters her to let her have them, eventually leading to an unexpected friendship. However, when her seemingly in

S3·E20 Core

Ha Det Bra

Aug 21, 2020 · 23 min

Frenda and Saten find themselves under fire from an unknown assailant, and duck into a department store to find cover. When none of Frenda's usual tricks seems to work against thei

S3·E21 Core

Doppelganger

Aug 28, 2020 · 23 min

Shokuho approaches Mikoto to ask her to break into a research facility and determine the results of a unique experiment. But before Mikoto can enter the building, she has an encoun

S3·E22 Core

Scavenger

Sep 4, 2020 · 23 min

Kuriba explains to Mikoto and Shokuho how she fears that the Doppelganger's "soul" might pose a threat to the city. The members of Scavenger move in to incapacitate and capture the

S3·E23 Core

Possession

Sep 11, 2020 · 23 min

Shocked by the arrival of the Level 5 Mikoto, the members of Scavenger must keep their dark side affiliation a secret from her. Scavenger's Leader proposes that Mikoto teams up wit

S3·E24 Mytharc

Diffusion

Sep 18, 2020 · 23 min

To counter the Doppelganger's giant monster form, Mikoto creates a giant magnetically-induced monster of her own. As the two do battle, it becomes evident that the Doppelganger has

S3·E25 Mytharc

My Dear Friends

Sep 25, 2020 · 23 min

As the fight atop the airship draws to a close, the Doppelganger's true intentions become clear. Following the battle, the members of Scavenger seek to regain their former glory, w

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