The initial reviews for Demon Slayer: Infinity Castle – Chapter 1: Akaza Returns are in following its first screening in Japanese theaters on Thursday, July 17. And as expected, the movie is a smash hit, earning widespread praise from both fans and critics.
It’s already being considered Ufotable’s magnum opus, with the first installment of the trilogy hailed as the “best ever.”
So, what are fans saying about Infinity Castle – Chapter 1?
Is Demon Slayer: Infinity Castle Worth Watching?
Reviews for the first Infinity Castle movie are now all over X, with many deeming it as a “must see” for every Demon Slayer fan.
Without spoiling the film that much, user @DemonSlayerSC teased the battles in Akaza’s Return “are just as insane and well animated” as Uzui’s fight against Gyotaro in the Entertainment District Arc.
@AniRave added that viewers would feel a rollercoaster of emotions, varying from anger to sadness. They even warned that “everyone cried” when watching.
@theanimeflow dropped that the movie ended “on a shocking event,” thanks to the reactions of the Hashira Upper Moons.
How Good is Demon Slayer: Infinity Castle?
So, how good is the first movie? In another tweet, @Fr0mimaginati0n claimed it left Mugen Train “in the dust.” “This movie’s visuals are insane,” they continued.
If @buxdabomb gave it a rating, it would be a 9/10 overall and 15/10 in some parts. “It’s surely an incredible and worthy addition to the legendary franchise we all love and cherish…”
As for the animation, @Fr0mimaginati0n revealed Ufotable has surpassed all its previous works with the fights in Infinity Castle Chapter 1 and called it “a masterpiece.”
What to Expect from Demon Slayer: Infinity Castle?

Infinity Castle – Chapter 1 picks up where the Demon Slayer Season 4 finale left off. Tanjiro and the Demon Slayer Corps have entered the demons’ stronghold, known as the Infinity Castle.
Here, they are set to face the terrifying Upper Rank demons as the final battle against the Demon King, Muzan Kibutsuji, begins.
With all tickets selling out in Japan within just 15 minutes and every seat reserved in advance, there’s no denying that the first part of Infinity Castle is a massive success. Fans lined up into the night, and photos of packed theaters quickly spread online.
The film’s release kicked off with exclusive midnight screenings, dubbed the “fastest screenings” in Japan.
As Akaza Returns is just the first film in the planned trilogy, hype for the climactic finale of the anime is reaching incredible heights, positioning it to become one of the most successful anime movie releases in Japanese box office history, potentially even surpassing its predecessor, Mugen Train.
Demon Slayer Chapter 1 is now available in Japan, with its global rollout set to begin in August. The film is set to premiere in the US on September 12.
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