Wasurenagusa

Nezuko goes to the village to sell charcoal and when she returns home she finds that most of her family has been slaughtered. The only survivor is her brother Tanjiro and he's been turned into a demon. She must find a way to help him... (an AU where Tanjiro is the sibling turned into a demon from the start and Nezuko becomes a demon slayer. This will cover the Final Selection arc)