Unfortunately, the Demon Slayers didn’t get a chance to fight Muzan properly before getting sucked into the Infinity Castle. Before the real fight against the final antagonist begins, they must take down the Upper Moons,

Crunchyroll and Sony Pictures Entertainment have released a new trailer for “Demon Slayer: Kimetsu no Yaiba – Infinity Castle,” the first film in a planned three-part cinematic finale for the global anime hit.

Kimetsu no Yaiba Infinity Castle,' the first in a trilogy, is set in the same world as 2020 hit 'Mugen Train,' the most successful anime film of all time.