Tanjiro had left to sell charcoal, finding himself sleeping over Old Man Saburo's house after the man persisted that it was too dangerous to continue up the mountain.

Now, here he was, carrying your bloodied body down the mountain with tear-brimmed eyes. How could this have happened? He blamed himself. How selfish of him, to be sleeping like a baby whilst his family was being slaughtered.

(This is an au where you/your OC takes Nezuko's place).