Child of Brightness

Tanjiro is a slayer of brightness, his family was murdered by non other than the Demon King, seeking out revenge Tanjiro goes upon a journey to cure his sister and to avenge his family but what he doesn't know is the reason Muzan killed his family...

(Spoilers)
1. He has mastered all of the Sun Breathing forms, taught by Yoriichi in his dreams.
2. He is born with the mark in this story.
3. Tanjiro is Yoriichi's descendant.
4. Tanjiro is a reincarnation of Yoriichi.

Editing -
The chapters are often edited since I may have made a few mistakes here and there. So if you are confused with the story at one point it's because either the idea was removed last minute or it didn't go well with the story.

Disclaimer -
I do not own any of the pictures or Kimetsu No Yaiba.
All rights belong to Koyoharu Gotouge and the original owners of the pictures used in the story.