Demon Slayer Infinity Castle Arc release date and latest news
The Demon Slayer Infinity Castle Arc is finally getting an anime adaptation.
Demon Slayer is an iconic franchise, spanning a hit manga series, an anime adaptation, video games, stage plays and films.
However, if you're an anime fan who hoped to see a fifth season of the TV series, we have some unfortunate news.
Despite the popularity of the Demon Slayer anime, it won't conclude with a full season of TV. Instead, the story will continue with a movie trilogy adapting the manga's Infinity Castle Arc.
On the bright side, we already know the release date for the first instalment - and you won't have to wait very long to watch it.
Following on from the 2024 movie covering the Hashira Training Arc - which is widely considered to be the calm before the storm, action-wise - the Infinity Castle storyline will see our heroes confront their demonic enemy Muzan Kibutsuji.
So, when can we expect to see the first part of this Infinity Castle movie trilogy? Read on to learn everything we know so far.
Demon Slayer Infinity Castle release date
Demon Slayer: Kimetsu no Yaiba Infinity Castle will be released in UK cinemas from 12th September.
That's two months later than the Japanese release date, which is on 18th July.
As for its international release, the dates span from between 14th August and 25th September 2025, depending on where you're located.
In the initial announcement for the trilogy, Crunchyroll president Rahul Purini said: "Demon Slayer has been a phenomenal franchise, and we at Crunchyroll are delighted to have been a part of it from the beginning.
"Crunchyroll is thrilled to be able to bring this trilogy of films to fans, on the big screen, and it promises to be one of the truly epic and consequential pop cultural events of our time when it hits cinemas."
What is the runtime for Demon Slayer Infinity Castle?
The film's runtime was confirmed on 7th July 2025, clocking in at an impressive 155 minutes, or about two and a half hours.
That's an epic blockbuster-level length, reassuring fans who might be worried about the films covering less material than a full season of TV.
At the same time, the first Infinity Castle movie was revealed to have a PG12 rating, which is pretty much what you'd expect from this franchise.
What is the Demon Slayer Infinity Castle plot?
Crunchyroll has released a synopsis for the film, which reads: "Tanjiro Kamado – a boy who joined an organisation dedicated to hunting down demons called the Demon Slayer Corps after his younger sister Nezuko was turned into a demon.
"While growing stronger and deepening his friendships and bonds with fellow corps members, Tanjiro has battled many demons with his comrades – Zenitsu Agatsuma and Inosuke Hashibira.
"Along the way, his journey has led him to fight alongside the Demon Slayer Corps’ highest-ranking swordsmen, the Hashira, including Flame Hashira Kyojuro Rengoku aboard the Mugen Train, Sound Hashira Tengen Uzui within the Entertainment District, as well as Mist Hashira Muichiro Tokito and Love Hashira Mitsuri Kanroji at the Swordsmith Village.
"The Demon Slayer Corps members and Hashira engaged in a group strength training programme, the Hashira Training, in preparation for the forthcoming battle against the demons, Muzan Kibutsuji appears at the Ubuyashiki Mansion.
"With the head of the Demon Corps in danger, Tanjiro and the Hashira rush to the headquarters but are plunged into a deep descent to a mysterious space by the hands of Muzan Kibutsuji.
"The destination of where Tanjiro and Demon Slayer Corps have fallen is the demons’ stronghold – the Infinity Castle. And so, the battleground is set as the final battle between the Demon Slayer Corps and the demons ignites."
Who could be in the Demon Slayer Infinity Castle voice cast?
The franchise's creators haven't made any casting announcements about Infinity Castle yet, but we assume these main voice actors will return:
- Tanjiro Kamado – Natsuki Hanae / Zach Aguilar
- Nezuko Kamado – Akari Kito / Abby Trott
- Zenitsu Agatsuma – Hiro Shimono / Aleks Le
- Inosuke Hashibira – Yoshitsugu Matsuoka / Bryce Papenbrook
- Giyu Tomioka – Takahiro Sakurai / Johnny Yong Bosch
- Tengen Uzui – Katsuyuki Konishi / Ray Chase
- Shinobu Kocho – Saori Hayami / Erika Harlacher
- Mitsuri Kanroji – Kana Hanazawa / Kira Buckland
Is there a trailer for Demon Slayer Infinity Castle?
Yes! As of July 2025, there's now a full teaser trailer for the Infinity Castle movie, teasing its status as an epic conclusion to the Demon Slayer story.
Demon Slayer: Kimetsu no Yaiba Infinity Castle is coming to cinemas from 12th September. Stream episodes on Crunchyroll. Sign up to Crunchyroll today for as little as £4.99 or start your 7-day free trial.
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Authors
Molly Moss is a Trends Writer for Radio Times, covering the latest trends across TV, film and more. She has an MA in Newspaper Journalism and has previously written for publications including The Guardian, The Times and The Sun Online.
Gavia Baker-Whitelaw is a freelance critic and entertainment journalist specialising in geek culture, TV and film. She has written for numerous outlets including Empire, TV Guide, Wired and Vulture, and hosts the film podcast Overinvested.
