Toaru Kagaku no Accelerator

A Certain Scientific Accelerator

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Alternative Titles

Synonyms: To Aru Majutsu no Index Gaiden, Toaru Kagaku no Ippou Tsuukou
Japanese: とある科学の一方通行〈アクセラレータ〉
English: A Certain Scientific Accelerator
German: A Certain Scientific Accelerator
Spanish: A Certain Scientific Accelerator
French: A Certain Scientific Accelerator
More titles


Type: TV
Episodes: 12
Status: Finished Airing
Aired: Jul 12, 2019 to Sep 27, 2019
Premiered: Summer 2019
Broadcast: Fridays at 22:00 (JST)
Licensors: Funimation
Studios: J.C.Staff
Source: Manga
Genres: ActionAction, FantasyFantasy, Sci-FiSci-Fi
Theme: Super PowerSuper Power
Duration: 23 min. per ep.
Rating: R - 17+ (violence & profanity)


Score: 7.211 (scored by 9960999,609 users)
1 indicates a weighted score.
Ranked: #31712
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1026
Members: 237,705
Favorites: 942

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Streaming Platforms

Ranked #3171Popularity #1026Members 237,705
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Episodes: /12


Academy City stands at the forefront of scientific and technological progress, best known for their development of espers: those capable of wielding superhuman abilities that alter the rules of reality. The most powerful among them are the Level 5s, and the one known as Accelerator reigns supreme, even after being weakened by a severe brain injury. By his side is the young girl known as Last Order, whom despite his cold demeanor, he holds closely and vows to protect at all costs.

Though Accelerator may be recovering from his injury, the dark side of Academy City never rests, and so he finds himself unwillingly caught up in the midst of a new conflict. When a mysterious young woman approaches Accelerator in pursuit of Last Order, the highest-ranked esper is confronted by a venomous organization that has taken root in Anti-Skill, Academy City's peacekeeping organization. With dangerous forces on the move that threaten to put Last Order and her sisters at risk, the self-proclaimed villain prepares to step into the darkness once again.

[Written by MAL Rewrite]

Characters & Voice Actors



Opening Theme

Apple Music
Amazon Music
Youtube Music
"Shadow is the Light " by THE SIXTH LIE (eps 2-7, 9-12)

Ending Theme

"Parole" by sajou no hana (eps 2-12)
"Shadow is the Light" by THE SIXTH LIE (eps 1)

Episode Videos


Sep 27, 2019
<LA hears Nobuhiko Okamoto's cackling Accelerator sound>...TIME FOR THE ANTI-HERO's main story!

Accelerator getting his own story set before Index III?..Sign LA up! and guess what it's GREAT...seriously why does To aru spinoffs seems much better than the main line Index anime series?

So what's the plot to To aru Kagaku Accelerator?...well Accelerator become embroiled in a conspiracy with the Antiskill renegades with the DA who have connections to the higher ups of Academy City, where one of the higher ups being a researcher finding his own way of making Level 6 Espers using robots and the dead, it's not until Esther Rosenthal voiced by Yurika Kubo ...
Sep 27, 2019
Mixed Feelings
The ever expansive Index franchise has led to numerous adaptations in the form of full seasons, spinoffs, OVAs, and even movies. Accelerator, the strongest level 5 Esper in Academy City, should be no stranger to anyone who is familiar with the franchise. Yet, spinoffs can be risky to pull off. Considering a character like Accelerator, that really is no understatement.

Written by the brainchild of the Index franchise, Kazuma Kamachi made this piece of work as an original spinoff. Its emphasis revolves around the dark side of Academy City. Unlike Railgun, the show takes on a darker storytelling route although the overall style will feel familiar. ...
Feb 20, 2024
Ever wanted to watch Accelerator fighting a huge pink teddy bear with a half-naked girl in a center of it? Maybe you wished to hear him constantly saying lines that are cringe-worthy and stupid, or laughing like an idiot without any particular reason? Or, perhaps, you were eager to see Raildex finally becoming a 100% trash?

What do you mean, "no"? Well damn, that's too bad, because that's exactly what you'll see in this piece of garbage that was supposed to tell about one of the most interesting characters in this verse.

Seriously, it's even worse than third season of Index. Two times worse, at least.
And that's ...

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