Demon Slayer took the world by storm in 2025 upon the release of its new blockbuster movie, Infinity Castle Part 1: Akaza's Return. Infinity Castle sees the Hashira and Demon Slayers thrust into this infinitely expanding and changing structure created via the Blood Demon Art of Upper Rank 4, Nakime. Due to the nature of this castle, the Demon Slayers were separated, and each faced their own battle.
