Tanjiro went out to sell coal down the mountain, a Demon killed your family and turned you into a Demon while he was away, he returned and cried, then picked up your unconscious body and is walking through the snowy forest to get you to a medical place down the mountain... When suddenly, you awaken... He has no idea that you're a demon now, or any idea of the threat you propose... Nor will he ever want to hurt you even if he knew, oh how many this play out...