The Hottest Anime Release of 2025 Is Already in Theaters – And Has 98% on RT

The epic journey of Tanjiro and his friends is coming to an end. The first of three feature-length movies, Infinity Castle, has been released.

This film focuses on the intense battle with Akaza, an Upper Rank Three demon, and one of the franchise's most controversial antagonists.

Here's why it's a worthy continuation of the series that every fan needs to see.

What Is 'Demon Slayer: Infinity Castle' About?

After grueling training, Tanjiro's squad is ready for their final stand. Their target is Muzan, but the path to him leads through the Infinity Castle, a distorted and constantly shifting space full of traps.

There, the hunters are separated and forced to fight the most powerful opponents, the Upper Ranks, one-on-one. The first movie is entirely dedicated to the tense and spectacular confrontation with Upper Rank Three, Akaza, who killed Kyojuro Rengoku.

'Infinity Castle' Proves That 'Demon Slayer' Is Still One of the Most Beautiful Anime

Ufotable has once again proven itself to be the unrivaled benchmark in the world of animation. Infinity Castle is a visual masterpiece that must be seen on the big screen to fully appreciate its scope.

The battle dynamics are refined to perfection: every sword movement, stance, and breathing technique appears incredibly fluid and powerful.

The flawless blend of traditional 2D animation and 3D modeling seamlessly integrated into the animation brings the castle's intricate labyrinth to life, making it a fully-fledged participant in the action.

'Infinity Castle' Features One of the Best Villains in 'Demon Slayer' History

The movie's greatest strength is not the scale of the battles, but the profound development of its main antagonist, Akaza. Unlike many one-dimensional opponents, Akaza is a multifaceted and contradictory character.

Through a series of brilliantly crafted flashbacks, viewers learn that he was not born a ruthless monster but rather a strong warrior who lived to protect his loved ones. While the film doesn't excuse his crimes, it allows us to understand his motivations and inner pain.

Akaza despises his own weakness and yearns to be defeated in a fair fight to find redemption. His confrontation with Tanjiro is not just a swordfight – it's a deeply emotional dialogue about strength, weakness, and the search for salvation.

What Did Critics & Viewers Think of 'Demon Slayer: Infinity Castle'?

• Demon Slayer: Infinity Castle has 98% from critics and 98% from viewers on Rotten Tomatoes.

• On IMDb, the anime has a score of 8.6/10.

• On Letterbox, the movie is scored 4.1/5.0.

Where to Watch 'Demon Slayer: Infinity Castle'?

Demon Slayer: Infinity Castle is currently playing in theaters and will be available on Crunchyroll in early 2026.