Kimetsu No Yaiba Recap Movie 2: Mt. Natagumo Arc -

The is a compilation film that condensed the high-stakes survival and emotional peak of the anime's first season. Originally released to bridge the gap between the TV series and subsequent movies, it focuses on the grueling battles against the Spider Demon family.

Demon Slayer: Kimetsu no Yaiba - Mt. Natagumo Arc (2020) - IMDb