I think Tanjiro’s parents until to the time where Yoriichi gave his earring and teached his sun breath style… basically Nezuko and Tanjiro is a decendants of Yoriichi’s relatives on his mom side! This would make sense right? Because His father hated him so it would make sense that Yoriichi father side also hated him because they think his a bad omen or something…
so probably Yoriichi is close to the ralatives of his mom side in which would make sense that Tanjiro’s decendants can use the sun breath style and no clan that cant.
so probably Yoriichi is close to the ralatives of his mom side in which would make sense that Tanjiro’s decendants can use the sun breath style and no clan that cant.