Here's a challenge. I remember reading this years ago, probably on spark.

Some scenes that I think are in the same fic:

Kagome is actually a demon and has been in the higurashi family back when her grandfather was small. She didn't know this until some particular chapter in the story

I believe inuyasha lost his tongue(or nearly did)

And I believe her father is alive in the feudal era.

I don't think it ever completed, and I don't know if it even exists anymore.

Thanks in advance!