The Infinity Castle arc is one of the booming arcs in Demon Slayer Kimetsu No Yaiba fandom!
In this arc, we join Tanjiro Kamado and other Demon Slayers to defeat Muzan in the Infinity Castle.
What secrets do the high-ranking demons hide from the Demon Slayers in the Infinity Castle?
Also Watch As: Black Myth: My Master is Wukong
- Part 1: Demon Slayer Infinity Castle Arc Movie Characters
- Part 2: What Can We Tell About Demon Kimetsu No Yaiba Infinity Castle Movie Plot Summary?
- Part 3: What Makes People Love Watching Demon Kimetsu No Yaiba Infinity Castle Drama?
- Part 4: What Is An Alternative Drama To Demon Kimetsu No Yaiba Infinity Castle?
Part 1: Demon Slayer Infinity Castle Arc Movie Characters
Tanjiro Kamado
No Demon Slayer movie series would ever be complete without Tanjiro Kamado as the protagonist! Tanjiro once again leads the Demon Slayer squad in Demon Slayer Kimetsu no Yaiba Infinity Castle. As usual, Nezuko, his younger sister, accompanies him.
Tanjiro and Nezuko are not alone in their attempts to banish demons in the mysterious Infinity Castle! We can expect their collaborations alongside other Demon Slayer characters, such as Giyu Tomioka, Zenitsu, and the Hashira.
At the same time, fighting Muzan, the first and oldest demon, isn’t the only thing that concerns Tanjiro and his friends! Later scenes also show Nakime, a biwa-equipped one-eyed demon, holding secrets of the Infinity Castle.
Figuring out the Infinity Castle’s dark secrets is yet another thing that Tanjiro and his team must do! That way, when the castle collapsed, the rest of the characters could live their happy life!
Kanao Tsuyuri
Kanao Tsuyuri, Tanjiro’s wife and the Kocho sisters’ adopted sister, is also back on stage! Demon Slayer Kimetsu no Yaiba Infinity Castle once again features her Flower Breathing Technique.
Kanao uses it in her fights against Douma! The Infinity Castle arc also lets us witness Kanao using the Flower Breathing Final Form to defeat Douma. The final form’s name is Equinoctial Vermillion Eye, and Kanao can use it even with only one eye.
She might exact Shinobu’s revenge by defeating Douma. However, she must pay for her temporary blindness because of the final form’s maximized usage!
In the end, she doesn’t back off from facing Muzan alongside Tanjiro and the Demon Slayer teams. As a result, she not only completely regained the ability to express emotions and make decisions. Her one remaining eye’s sacrifice during the Muzan fight also pays off!
Muzan Kibutsuji
Muzan Kibutsuji doesn’t only become the main villain of Demon Slayer Kimetsu no Yaiba Infinity Castle. Being the primary source of evil has been his characteristic since the earliest series of Demon Slayer movies.
Outside, Muzan might look like a young man in his 19s-20s. We can even say that his appearances resemble the real-world’s late Michael Jackson. Yet, only a few intuitive folks know that Muzan has lived since the Heian era.
It not only makes Muzan’s biological age exceed a thousand years. Instead, his status as the leader of Twelve Kizuki and some other Upper Rank demons also makes him formidable.
We can even draw blood ties between Muzan and the Ubuyashiki family at the arc’s ends. The blood relation doesn’t only mean his relationship with the late Kagaya Ubuyashiki, the family’s leader. Instead, it also makes Muzan’s presence crucial in determining the plots!
Douma
Douma of Demon Slayer Kimetsu no Yaiba Infinity Castle movie used to be an Upper Rank Six demon. This fan-wielding demon consistently becomes stagnant in this rank until we reach the last movie’s arc.
As the Upper Rank Two demon, Douma is more than just a two-faced demon. His inability to feel anything and his sadistic fighting skills have caused Shinobu Kocho’s death while encountering him.
Apart from denying the existence of God, deity, and other supernatural beings, Douma is also prone to eating humans. He prefers eating women because, according to him, women can bear children.
At first, Douma can outsmart Inosuke and Kanao in their fights. However, we are glad that Kanao eventually beats Douma and joins the Demon Slayer team to banish Muzan!
Part 2: What Can We Tell About Demon Kimetsu No Yaiba Infinity Castle Movie Plot Summary?
Demon Slayer Kimetsu no Yaiba Infinity Castle is the full name of this Demon Slayer-based movie! Indeed, this masterpiece from Hikaru Kondo, Haruo Sotozaki, and others is based on the ever-popular Demon Slayer anime and manga!
The year 2020 might mark the completion of the anime and manga series. However, such a completion motivates the movie producer to produce the series’ continuation!
The early era of the 20th century becomes the main setting in the Infinity Castle arc! In this era, Tanjiro and other Demon Slayers and Hashira once again go on an adventure to banish demons. Once again, Muzan, the first and oldest leader of the Twelve Kizuki, becomes the antagonist.
Demon Slayer Kimetsu no Yaiba Infinity Castle movie finally shows the all-star protagonist teams fighting Muzan! Yet, they should fight the Upper Rank demons before they reach Muzan’s place in the Infinity Castle.
Rumors have it that the Infinity Castle is more than just a meeting place for Muzan and his demonic underlings. The Infinity Castle also holds secrets of powerful traps underneath the never-ending labyrinth-like appearances!
As the official name suggests, the Infinity Castle also doesn’t possess any definite appearances. The strange gravitation also challenges the protagonists’ Breathing Techniques like they have never encountered before!
Part 3: What Makes People Love Watching Demon Kimetsu No Yaiba Infinity Castle Drama?
So far, Demon Slayer Kimetsu no Yaiba Infinity Castle movie has received a nearly-perfect score on IMDB! Even on July 18, 2025, which is the first release date in Japan, this movie has received many hypes.
Demon Slayer Kimetsu no Yaiba Infinity Castle drama continues to reap popularity outside Japan. Many theaters in Asian countries have sold the most tickets for this anime-based movie. Indeed, we can find many charming points in this movie!
The audience finally sees balanced portions of the characters’ development. Tanjiro might remain as the iconic protagonist, but other Demon Slayers, like Shinobu and Kanao, also get their spots. We also love how the movie finally shows everyone’s final technique.
Muzan’s presence has always left significant loopholes in the audience’s minds since the first Demon Slayer series! He finally shows his personality, technique, and other aspects in the final Infinity Castle arc.
The Infinity Castle concept also piques the audience’s interest, in that the infinity word itself becomes the emphasis. More precisely, this movie answers our wonder of defying gravity with the Breathing Technique inside an ever-changing castle.
The audience also tends to praise how stunning the visuals are. No wonder we can find the movie’s merchandise everywhere!
Part 4: What Is An Alternative Drama To Demon Kimetsu No Yaiba Infinity Castle?
Demon Slayer Kimetsu no Yaiba Infinity Castle marks the final arc of the Demon Slayers’ adventure! Plus, given the movie’s popularity, we might not miss the movie’s full scenes due to the sold-out tickets!
Yet, worry not, for there’s always an alternative to this popular movie. ReelShort has Black Myth: My Master Is Wukong Drama, a drama that is also adapted from a popular series.
Sun Wukong, or the naughty Monkey God, is a legendary character in the Chinese novel Journey to the West. In this C-Drama, he once again returns as he asks a mortal to place the seal on his forehead!
Then, he will take the mortal as his pupil as he conquers old enemies with his charm and weapons! We can expect his collaborations with other characters in taking down the enemies!
Have you wondered how the Monkey God does it? We advise you to watch his actions on the ReelShort platform!
