Watch your step.

Updated on July 29, 11:25 a.m. (GMT+8):Improved relevancy.

TheDemon Slayerfranchise created by Koyoharu Gotogue possesses exceptional worldbuilding, with beautiful and diverse locations that act as the battleground for the heroes and villains.

The Infinity Castle, among all the places featured in the series, emerges as the most enigmatic. If you’re curious about the inner workings of this mystical fortress, delve deeper into its secrets.

Demon Slayer Hashira Training Arc Season 4 teaser trailer released at the end of Season 3’s finale featuring the Stone Hashira Gyomei Himejima, the Wind Hashira Sanemi Shinazugawa and the Serpent Hashira Obanai Iguro

Discover the reason behind this location serving as the gathering hub for the mightiest demons in the series.

Warning: Spoilers if you have yet to watch Season 1 of the anime, theDemon Slayer 2023 movie, or Chapters 52 and 98 of the manga.

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Everything you need to know about the Infinity Castle in Demon Slayer

The Infinity Castle is a massive and complex structure that serves as the secret base of the series’ main antagonist, Muzan Kibutsuji, and the lair of theTwelve Demon Moons.

It first appeared when Muzan summoned all the Lower Rank demons to his castle after the events from the Rehabilitation Training Arc. The Demon King was so disappointed with the weaker demons that he terminated all of them except Enmu, the Lower Rank one demon who inhabited theMugen Train.

Demon Slayer official key visual

The second time it showed up was when Upper Rank Six demon siblingsGyutaro and Daki were defeatedby the Demon Slayer Corp. Muzan had all the Upper Rank demons teleported to the castle to discuss a new plan of action against theHashira.

The only inhabitant in the castle is Nakime, the Biwa Demon whose power is to teleport other teams into the Infinity Castle on Muzan’s command.

All Demon Slayer Hashira with a caption that ranks them from weakest to strongest

The castle is also known as the Dimensional Infinity Fortress because of its labyrinthine structure and intricate design. Everything in it, including the rooms and platforms, can be moved by Nakime at will.

The location will also play a pivotal role in the later arcs of the anime.

Funko POP Animation: Demon Slayer - Muzan Kibutsuji

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Funko POP Animation: Demon Slayer- Tanjiro Kamado

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