Is Demon Slayer Infinity Castle Arc the last arc? Not exactly. In the manga, Infinity Castle is not the final arc because the story continues into the Sunrise Countdown Arc after it.
However, in the anime, Infinity Castle is part of the final Demon Slayer storyline. This is why many fans call it the final arc, even though the manga structure separates the ending into more than one part.
This guide explains whether Infinity Castle is the last arc, what comes after it, and how the anime movies connect to the manga ending. For more simple anime and manga explanations, KunManga covers related Demon Slayer guides in an easy-to-follow way.
Is Demon Slayer Infinity Castle Arc the Last Arc?
The Demon Slayer Infinity Castle Arc is not technically the last arc in the manga. It is one of the final major arcs, but the manga continues into the Sunrise Countdown Arc after the battles inside the castle.
The confusion happens because Infinity Castle begins the final battle phase of Demon Slayer. Once the Demon Slayer Corps enters the castle, the story moves directly toward the final confrontation with Muzan Kibutsuji.
So the best answer is this: Infinity Castle is part of the final saga, but it is not the very last manga arc.
What Arc Comes After Infinity Castle?
The arc that comes after Infinity Castle is the Sunrise Countdown Arc. This is the final arc of the Demon Slayer manga and it continues the battle against Muzan after the events inside the Infinity Castle.
While Infinity Castle focuses heavily on battles against powerful Upper Rank demons, Sunrise Countdown focuses on the final struggle to defeat Muzan before sunrise. The title itself connects to Muzan’s greatest weakness: sunlight.
This makes Sunrise Countdown the true final arc of the manga. Infinity Castle sets up the final stage, while Sunrise Countdown completes the main conflict.
Why Do Fans Think Infinity Castle Is the Last Arc?
Many fans think Infinity Castle is the last arc because it feels like the beginning of the end. It brings together Tanjiro, the Hashira, the Demon Slayer Corps, Muzan, and the strongest demons in one massive final battle setting.
The arc also includes several major fights that had been built up throughout the series. For many viewers, this makes Infinity Castle feel like the final arc emotionally, even if the manga still has one more named arc afterward.
Another reason is the anime adaptation. The final anime project is being presented through the Infinity Castle movie storyline, so anime-only fans may naturally connect the title “Infinity Castle” with the end of Demon Slayer.
How Infinity Castle Fits Into the Full Demon Slayer Arc List
In the full manga structure, Infinity Castle appears near the end of the story. It comes after the Hashira Training Arc and before the Sunrise Countdown Arc.
The late-story order is:
- Hashira Training Arc: The Demon Slayer Corps prepares for the final battle.
- Infinity Castle Arc: The Corps is pulled into Muzan’s fortress and faces major demon battles.
- Sunrise Countdown Arc: The final fight against Muzan reaches its conclusion.
If you want the complete story structure from the first arc to the ending, how many arcs are in Demon Slayer gives a fuller breakdown of the full arc order.
Is Infinity Castle the Final Anime Arc?
For the anime, Infinity Castle is part of the final adaptation project. Instead of adapting the ending as a normal TV season, the anime continues with movies focused on the Infinity Castle storyline and the final battle.
This is why the anime situation is slightly different from the manga. The manga separates Infinity Castle and Sunrise Countdown as different arcs, while the anime may present the final stretch as one connected movie event.
Because of that, saying “Infinity Castle is the final anime storyline” is more accurate than saying “Infinity Castle is the last manga arc.”
Does Infinity Castle Cover the Ending of Demon Slayer?
Infinity Castle does not cover the entire ending by itself in the manga. It covers a huge part of the final conflict, but the final conclusion happens after the castle battles continue into the Sunrise Countdown Arc.
The ending of Demon Slayer depends on what happens after the Demon Slayer Corps pushes beyond the Infinity Castle battle. That final section resolves the fight against Muzan and shows the cost of the long war against demons.
If you only read or watch Infinity Castle, you are very close to the ending, but you have not reached the full conclusion yet.
Is Demon Slayer Finished After Infinity Castle?
In the manga, Demon Slayer is not finished immediately after the Infinity Castle Arc. The story still needs the Sunrise Countdown Arc to complete the final battle and close the main plot.
For anime viewers, the answer depends on how the movie adaptation is released. Since the anime is adapting the final part through movies, fans may need to follow the full final movie project to see the complete ending.
If you want a broader status update on the series, is Demon Slayer finished explains the difference between the completed manga and the still-adapting anime version.
Why Infinity Castle Is So Important
Even though Infinity Castle is not technically the last arc, it is one of the most important arcs in Demon Slayer. It brings many of the strongest characters together and begins the final stage of the war against Muzan.
The arc is important because it includes:
- Major battles involving the Hashira
- Important fights against Upper Rank demons
- Emotional character moments and sacrifices
- Direct movement toward the final fight with Muzan
- The transition from preparation to all-out war
Infinity Castle changes the story from a series of missions into a direct final confrontation. That is why it feels so large and final, even before the true last arc begins.
Should You Read Past Infinity Castle?
Yes, if you are reading the manga, you should continue past Infinity Castle. Stopping there means missing the actual ending of Demon Slayer.
The Sunrise Countdown Arc gives the story its final resolution. It shows how the fight against Muzan ends and what happens after the Demon Slayer Corps reaches the final stage of its mission.
For anime-only fans, it is better to avoid detailed spoilers if you want to experience the final movies fresh. But if you want the complete story immediately, the manga already has the full ending.
Final Thoughts
So, is Demon Slayer Infinity Castle Arc the last arc? No, not in the manga. The Infinity Castle Arc is one of the final major arcs, but the Sunrise Countdown Arc comes after it and serves as the true final arc.
Still, Infinity Castle is part of Demon Slayer’s final saga and plays a huge role in the ending. It begins the last major battle phase, while Sunrise Countdown completes the story and brings Tanjiro’s journey to its conclusion.

Techna Taylor is a content contributor at KunManga, focusing on manga, manhwa, and webtoon-related guides, recommendations, and reader-friendly explainers. With a strong interest in digital comics and online reading trends, Techna helps create clear, accessible content for fans who want to discover new series, understand popular titles, and follow updates across different manga genres.
