A Certain Scientific Accelerator (Toaru Kagaku no Accelerator) is a Japanese manga series, which was written by Kazuma Kamachi (Heavy Object) and illustrated by Arata Yamaji. An anime television series adaptation by J.C.Staff and A.C.G.T aired on July 12, 2019. The final episode aired on September 27, 2019.
Accelerator is considered the most powerful psychic in Academy City and one of a few able to shift to the level 6. He, however, now lives a peaceful life and tries to recover from the past injuries. His rest is interrupted, when a rogue group within Anti-Skill called DA that is obsessed with bringing justice to Academy Cityso much that it would even opt for kidnapping and experiments on humans, causes pure havoc in the city. While Accelerator does not like to be bothered and hates problems, Disciplinary Action, or DA is enough of a threat for Accelerator to take actions, mainly because of the fact that the rogue group, for some unknown reason, is trying to kidnap The Last Order. Now only Accelerator can save the Academy City and The Last Order from the zealous fanatics, working in DA.
While A Certain Scientific Accelerator is not a direct continuation, or prequel to any of the series, you will need to watch A Certain Scientific Railgun to understand what is going on in the series, otherwise it will be somewhat difficult to interpret the story-line. You might also watch Toaru Majutsu no Index to get a full understanding. With that being said, the main villain of A Certain Magical Index franchise finally gets his own TV series. While many might hate him for the person he is, attentive viewers and readers will understand his motives. It was nice for him to get a personal TV series that will show the viewer more about Accelerator. In addition to this, just like in Toaru Majutsu no Index, Toaru Kagaku no Accelerator unites magic and science and the end result of this is quite of a mystery that is not only breathtaking, but also disturbing sometimes. And when it becomes disturbing, it will make you feel hella uncomfortable. No spoilers, though.
Animation wise, it is, without a doubt, an absolute masterpiece: characters design, backgrounds, action scenes, facial expressions; absolutely beautiful. Sound wise, if there is an English dub one day, I would still highly recommend you to watch it subbed; there is only one Accelerator and it is Okamoto Nobuhiko.
As for the characters, there is only one new protagonist that is worth mentioning, Rosenthal Esther. Let us omit the type of magic she practices and just say that she is a magician that wants to meet Accelerator to inform him about the upcoming events. She is a very easy-going individual, who, in reality, possesses a terrifying power. Anyways, A Certain Scientific Accelerator has a pretty nice character cast, including supporting character, as well as villains.
All in all, A Certain Scientific Accelerator is a great addition to the franchise. As mentioned before, it might be difficult for you to understand the plot of A Certain Scientific Accelerator without watching other TV series, but it will still be enjoyable, so it is up to you to decide.
9 Misakas/10, says Misaka Misaka trying to hide the fact that the whole review is nothing but fangirlism, but actually giving it 9 Misakas, instead of 10, hiding her attitude towards the said series.