Animation

Muzan traps the Demon Slayer Corps inside the shifting Infinity Castle, forcing them into desperate battles against the strongest Upper Rank demons. Tanjiro and Giyu clash with Akaza, Zenitsu faces his former senior Kaigaku, and Shinobu sacrifices herself in a doomed fight with Doma. Though some victories are won, many lives are lost, and Muzan remains hidden in the fortress, setting the stage for the final showdown.