Demon Slayer: Kimetsu no Yaiba Mugen Train

Demon Slayer: Kimetsu no Yaiba Mugen Train is a full length feature film taking place right after the first season of the anime and covering the second half of volume seven and the entirety of volume eight of the manga. 

Here is the official trailer of the new Film from aniplex. 

The Plot of Demon Slayer: Kimetsu no Yaiba Mugen train takes place immediately after the first season of the anime with our main protagonist Tanjiro Kamado his sister Nezuko, his two Demon slaying friends Zenitsu and Inosuke are accompanied with the Fire Hashira Kyōjurō Rengoku, to Investigate a series of mysterious disappearances onboard a seemingly infinitely-long train. little did the group know that the last of the lower moons of the Twelve Kizuki, Enmu is on board with them and has prepared a trap for them.

Demon Slayer: Kimetsu no Yaiba The Movie Mugen Train is already out in japan and has grossed about $200 million at the box office in the first four weekends in theatres, The Movie is announced to be released to western countries in early 2021.