•I'm Not Your Brother•

Kokoshibo or should I say Michikatsu, felt extremely guilty for killing Yoriichi. After his twin baby brother death Muichirou took the flute, he made for yoriichi with him.
480years later, Kokoshibo found the kamado family. he seen Tanjiro go up and down the mountain selling coal to villagers.

●what if Michikatsu thought tanjiro was Yoriichi?

• How would the uppermoon change tanjiro life?

● Not alive Nezuko.