Where does Infinity Castle I fit into Demon Slayer? Its link to season four
Tudum’s introduction places the film within the story; regional availability and audio options are separate questions.
Demon Slayer: Kimetsu no Yaiba Infinity Castle I continues the story after the anime’s fourth season. In a Portuguese-language article published on September 28, 2026, Netflix Tudum presents Tanjiro and the demon slayers’ arrival in the Infinity Castle as the next stage of that journey.Portuguese-language article published on September 28, 2026 ↗
For viewers catching up, this connection explains why the film is not a fresh introduction to the characters. The shifting space and the separation of the slayers are part of the new setting’s premise. The encounters and battle outcomes can be left for the film rather than revealed by a viewing guide.
Tudum’s article says the film is available on Netflix. A Portuguese-language page, however, does not confirm access in every country or every audio option. The voice cast listed in the article belongs to the English dub, not the Brazilian one. Before watching, check the full title, your account’s region and the languages offered on the film’s page.
