'Demon Slayer: Infinity Castle' is based on the manga by Koyoharu Gotoge, which has surpassed 220 million copies in circulation. The film depicts the first chapter of the final battle between the Demon Slayer Corps and the elite demons in the Infinity Castle, the stronghold of the demons.
On this day, voice actors Natsuki Hanae, who voices Tanjiro, and Hiro Shimono, who voices Zenitsu, made an appearance.