Since 2019, the animated series Demon Slayer – Kimetsu no Yaiba has continued to generate attention. Adapted from the eponymous manga by Koyoharu Gotōge, which was relatively unnoticed at its release, this series has helped the work gain popularity through a significant factor: the unanimous recognition of its production quality, produced by the animation studios Ufotable. After four seasons and a successful first feature film, Demon Slayer sees its final arc adapted into three consecutive films titled The Infinite Castle (respectively 1, 2, and 3). The first installment, released in theaters on September 17, is available since Monday, September 28, on Netflix. The story of Demon Slayer is primarily that of Tanjiro Kamado. For four seasons, this courageous young boy has traveled the world in search of a cure for his sister Nezuko, who is a victim of a curse. Enlisted in the Demon Slayer Corps alongside his friends Zenitsu and Inosuke, Tanjiro continuously faces the demonic forces that inhabit the Earth, hoping to track down their leader, the terrible Muzan, to free his sister from the illness that is consuming her. However, nothing prepared them for such a strategy, and the Demon Slayer Corps finds itself drawn into Muzan's lair, the Infinite Castle. Trapped in enemy territory, Tanjiro and his allies have no choice but to face the greatest threat they have ever encountered. After the success of its first film in theaters (The Infinite Train in 2021), there was a strong possibility that Demon Slayer would make another major impact with this second feature film, especially anticipated by fans of Japanese animation. However, the results have completely exceeded expectations. Indeed, Demon Slayer has succeeded in becoming the most profitable Japanese film of all time, the second biggest success at the global box office for a hand-drawn animated film (after The Lion King) and even to be nominated for the Golden Globes - a first for this category of films. Rated 4.3 out of 5 by the AlloCiné community, Demon Slayer: The Infinite Castle has managed to offer a new dimension to Japanese animated films to become the first true international blockbuster in this category. In France, it gathered no less than 1.7 million viewers in theaters, establishing itself as the 13th biggest success of the year 2025 - ahead of a particularly popular title, Superman. If the next installment of the trilogy The Infinite Castle should be released in theaters by the end of 2027, the first part is already available on Netflix. The platform also announced, following the success of the film, to consider adapting it into a live-action format.