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 9779297,792 users)
1 indicates a weighted score.
Ranked: #31092
2 based on the top anime page. Please note that 'Not yet aired' and 'R18+' titles are excluded.
Popularity: #1018
Members: 234,248
Favorites: 935

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Ranked #3109Popularity #1018Members 234,248
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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]


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Episode Videos

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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)


Jan 8, 2024
"A Certain Scientific Accelerator" is the second spin-off of the science-fantasy series "A Certain Magical Index", the first being "A Certain Scientific Railgun". As the name implies, it focuses on Accelerator, the resident anti-hero of "Index" and the top-ranked esper in Academy City. While in terms of visuals and sound design, "Accelerator" is just as impressive as its parent series "Index" and sister series "Railgun", it unfortunately falls a little short in the areas that truly matter, though it's still well worth watching, especially if you're an Accelerator fan.

Story (8/10):
The series is set some time after episodes 18 and 19 of "Index", when Accelerator saved ...
Apr 13, 2022
Mixed Feelings
i would rate this a 2 if it werent for the connection to to aru
if you dont like or have never watch to aru this isnt for you
even if you like dumb schlock this is not for you
the animation in the first half is so jarring and only get passable in the second half
even the connection to to aru is flimsy at best, last order barely shows up and barely does anything of consequence, accelerator is weirdly passive even for being his nerfed version
this season should've been called "a certain magical necromancer"
almost everything as based around esther and her drama which to be fair is ...
Mar 20, 2021
Short Review:

They had to ruin the most interesting character, and probably my favorite in the entire Raildex franchise. Thankfully this isn't as long as Index III, because if it were, I could see this being close to a 2.

I gave this a better score because I did actually enjoy the first couple of episodes and had my eye on a score of 7 at around episode 3, but it got so bad so quick I was amazed. The story kept getting more and more dull and uninteresting as I neared the end, as well as really predictable and overall trash.

Animation also was a downgrade ...

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