"Demon Slayer - Mugen Train", the movie grossed over $44 million on its opening weekend in Japan. Despite the COVID-19 pandemic affecting the whole world, there was not much effect for the movie success. It was the top grossing film worldwide for the weekend and the best 3-day opening in Japanese theaters even when several safety measures were adopted due to the pandemic like spaced seating which limited the admissions in the theatre to about half of normal capacity or a ban on food and drinks in sessions with full capacity.

Source: Wikipedia