you, tanjiro, rengoku, zenitsu, and inosuke were on the mugen train and then suddenly y'all fell asleep because of enmu lowermoon one...you and tanjiro manage to wake up and y'all went up on top of the train to find him

Enmu turns around and look at y'all

Enmu: good morning...y'all should've stay asleep

he says that while holding out his hand with the mouth

Tanjiro: grips his sword

Enmu: you should had a nightmare when your family was killed

Tanjiro: keep my family out your mouth!!