The Ultimate Guide: 5 Ways To Watch Demon Slayer's Infinity Castle Arc Legally (Forget Nunu TV)

The search for "Demon Slayer: Kimetsu no Yaiba - Infinity Castle Arc" (귀멸의 칼날 무한성편) combined with "Nunu TV" (누누 티비) is one of the most popular queries for fans eager to see the final, epic confrontation. As of December 11, 2025, the highly anticipated Infinity Castle Arc is confirmed to be adapted into a feature film, not a standard TV season, and its official release is scheduled for 2025. This article cuts through the confusion, providing the absolute latest, verified information on the release date, official streaming platforms, and why relying on illegal sources like the now-defunct Nunu TV is both unnecessary and risky.

The global phenomenon created by Koyoharu Gotouge, animated by the masterful studio Ufotable, deserves to be seen in its full, high-definition glory. While the excitement for the final battle against Muzan Kibutsuji is palpable, accessing the content legally ensures you support the creators and experience the definitive version of the Demon Slayer Corps' ultimate mission.

Demon Slayer: Infinity Castle Arc - The Complete 2025 Release and Streaming Status

The "Infinity Castle Arc" (무한성편), which covers the final major storyline in the manga, is not yet a released anime series. Instead, it has been announced as a major cinematic event. This is crucial information for any fan searching for a streaming link today.

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The Official Cinematic Release Schedule

The final arc is being adapted into a movie titled Demon Slayer: Kimetsu no Yaiba – The Movie: Infinity Castle. This follows the successful model of the Mugen Train Arc, which was first released as a film before being re-edited into a TV season. The current schedule confirms a major 2025 release timeline:

• Japan Release Date: July 18, 2025
• South Korea Release Date (극장판 귀멸의 칼날: 무한성편): August 22, 2025
• International Theatrical Release: Crunchyroll and Sony Pictures Entertainment will handle the international rollout in select Asian countries, including Korea.
• Streaming Release: Major streaming platforms like Crunchyroll (크런치롤) and others are not expected to stream the movie until late 2025 or early 2026, following the conclusion of its theatrical run.

This means any website, including "Nunu TV" or its successors, claiming to have a full, high-quality stream of the Infinity Castle Arc in late 2025 is either offering a pirated, low-quality recording (often referred to as a "camrip") or is entirely fraudulent. The best way to watch the Hashira's final battle is to wait for the official theater release.

Why You Should Avoid Nunu TV and Illegal Streaming Sites

The query "귀멸의 칼날 무한성편 누누 티비" highlights the ongoing issue of illegal streaming. While Nunu TV was a notorious platform known for its quick uploads of new content, it is now an outdated and dangerous search term. The consequences of using such sites far outweigh the perceived convenience.

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The Reality of Nunu TV (누누 티비)

Nunu TV's main operator was arrested on November 9, 2024, as part of a major crackdown by the Ministry of Culture, Sports and Tourism's Copyright Crime Scientific Investigation Unit. While the original site is gone, numerous copycat and alternative illegal platforms (often referred to as Nunu TV alternatives or 대체 사이트) have emerged, attempting to capitalize on the original site's popularity.

The Hidden Risks of Illegal Streaming

Searching for pirated content like the Infinity Castle Arc on these sites exposes users to significant risks:

• Malware and Viruses: Illegal sites are notorious for hosting malicious advertisements and hidden pop-ups that can install spyware or viruses on your device.
• Data Theft: Many sites use deceptive links to trick users into entering personal information, leading to potential identity or financial theft.
• Low Quality: The content is often a poor-quality rip, completely undermining the stunning animation and sound design Ufotable is famous for, especially in a cinematic release like the Infinity Castle movie.
• Legal Ramifications: Using these sites violates Copyright Law (저작권법) and directly harms the creators, animators, and voice actors who bring Tanjiro Kamado and the Hashira to life.

4 Legal and Official Ways to Stream Demon Slayer Now

Instead of risking your digital security, you can catch up on all the current and past arcs legally in preparation for the 2025 movie. These platforms offer the highest quality streams and official Korean subtitles/dubbing.

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1. Crunchyroll (크런치롤)

As the primary international distributor for anime, Crunchyroll is the definitive source for watching Demon Slayer legally. They stream the latest episodes of the current season—the Hashira Training Arc (합동 강화 훈련편)—simultaneously with the Japanese broadcast. They will also be the official platform for the Infinity Castle movie's eventual streaming release.

2. Netflix (넷플릭스)

Netflix is a strong option for fans in Korea and globally. They typically license the earlier seasons, including Season 1 (Tanjiro Kamado, Unwavering Resolve Arc), the Mugen Train Arc (무한열차편), and the Entertainment District Arc (환락의 거리편). This is a perfect way to binge the series before the final movie.

3. TVing (티빙)

TVing is a popular Korean OTT platform that frequently secures streaming rights for major anime titles, including past Demon Slayer seasons. They have been known to host special viewing events, such as the full-run live stream of the Entertainment District Arc.

4. Local Theatrical Release (영화관)

For the Infinity Castle Arc, the most recommended and highest-quality viewing experience will be in a theater starting on August 22, 2025. Watching the film on the big screen, with Ufotable's unparalleled animation and sound design, is the only way to truly appreciate the final, dramatic confrontation between the Demon Slayer Corps and the Twelve Kizuki.

Topical Entities and LSI Keywords for Demon Slayer Fans

To fully immerse yourself in the world of Demon Slayer and prepare for the Infinity Castle Arc, familiarize yourself with these key entities and concepts:

• The Hashira (하주): The strongest swordsmen of the Demon Slayer Corps, including Giyu Tomioka, Sanemi Shinazugawa, and Gyomei Himejima, who will play pivotal roles in the final battle.
• Upper Rank Demons (상현): The elite demons under Muzan Kibutsuji's direct command, who will be the main antagonists within the Infinity Castle.
• Swordsmith Village Arc (도공 마을편): The preceding season that sets the stage for the final arcs, featuring battles against Upper Rank Four and Five.
• Kokushibo (코쿠시보): The Upper Rank One demon, one of the most formidable opponents the Hashira will face.
• Sunrise Countdown Arc: The final manga arc that immediately follows the Infinity Castle events.
• Demon Slayer Manga (귀멸의 칼날 만화): The original source material, now complete, that details the entire story.
• Ufotable Animation Quality: The studio responsible for the series' signature visual excellence, making the legal, high-quality stream essential.

By focusing on official releases and legal streaming platforms, you ensure the best viewing experience for the Infinity Castle Arc while supporting the massive effort that goes into creating this world-class anime.