A group of people fall out of a portal down onto the ground randomly. You were doing your own things as always when this happens. You didn't notice them so you keep doing what you're doing.

Tanjiro: "What in the world..?"

Zenitsu: "DID WE FALL OUT OF THE PORTAL?! AAAA-" Tanjiro quickly covers Zenitsu's mouth so you don't hear him

Inosuke: "FUN WHAT FUN!!" He laughs like a maniac.