(Demon Tanjirou AU) Where are You? [DISCONTINUED]

The demon lord, Kibutsuji Muzan , attacked the Kamado home, extinguishing the Sun Breathing technique from existence. However, Tanjirou was at the village, only coming back when he smelled blood. Muzan then turns Tanjirou into a demon and kills all of his family. Tanjiro never saw his Sister dead. Tanjiro wanders the...