The Blood In The Night- Demon King Tanjiro Au

SPOLIERS: IF YOU HAVEN'T READ ANY OF THE MANGA, THEN PLEASE DONT READ THIS UNLESS YOU WANT TO BE GIVEN SPOLIERS THEN YOU DO YOU.

This is also a InoTan Story!

After the events of fighting Muzan Kibutsuji, he gave all of his blood to Tanjiro because he saw potential. He was a special kind. The only one who deserved his blood.
Kanao didn't have the last antidote. He couldn't be saved. Nothing could stop Tanjiro.
He was stuck as a demon until somebody makes the antidote.
Tanjiro controlled everything. Turning more people, to reign as an army.
His sister, Nezuko stayed with Inosuke and Zenitsu. She cried every night, all she wanted was her brother back.

Could Tanjiro Be Saved Or Would He Remain This Empty Shell