The 117-minute film made a gigantic 10,754,423,550 yen on 7,983,442 admissions only in ten days since its release on October 16, 2020, becoming the fastest film ever shown in Japan to surpass ten billion yen at the box office.
Demon Slayer: Kimetsu no Yaiba the Movie: Mugen Train earned an impressive 3.041 billion yen on 2.273 million admissions even on its second Saturday and Sunday, becoming the top-grossing film in Japan for two consecutive weeks.
Only in two weeks, Mugen Train has also become the top-grossing film of this year so far and has ranked 32nd in the all-time Japanese box office ranking.