Tanjiro, Zenitsu, Inosuke, and You, were headed to The Mugen Train.

Walking into the station, you admired the historical monument, whilst, Inosuke rushed up to the train, kicking it and trying to attack it, muttering something random about defeating "The Beast".

You honestly just tried to ignore his Idiocracy.

That was until Tanjiro joined in. Arguing about how he shouldn't attack it cause it could be this Land's protector.

Then you remembered that he grew up in a village. Of course he didn't know what a train was.