In this story, Yoriichi's swordsman skills are reincarnated into Tanjiro since birth. He has the same birthmark as him, and the rising sun earrings. Since he had lots of stamina ever since a small child, he started doing the Hinokami Kagura dance in place of his father, so he already knows how to perform all 12 forms...
When Tanjiro arrived after selling charcoal from village he found that his family got slaughtered but also found out that only one of his family member is alived so he decided to become one of slayer to protect his last family member and also to take revenge from the monster who killed his family, later he was taught...
Taiyo kamado, the reincarnation of Yoriichi, strong enough to take down 2 upper moons. The love of Kanae kocho, and the brother of tanjiro kamado. One day Taiyo came across a demon which slaughtered some people. He wasn't afraid and managed to kill the demon. He was just seven when he went to train with the flame hash...
The is an alternate hypothetical where tanjiro is a descendant of Yorichii
I don't own Kimetsu No Yaiba. What If Tanjiro is stronger than the pillars. What if he learn the first breath style from his father. How would the story change. and i dont own demon slayer this is just a fanfiction