I don't even know

Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train Music Collection

The Eternal Symphony Epic Symphonic Music ON. 00010 

Album Composer & Music by Ali OKUR &MEDYA KONYA PR MUSIC

I decided to mix the two songs together into one longer piece, because they should be that way.

If you like it be sure to support the original composer
https://www.cdjapan.co.jp/product/THCA-60262