This is another old story. The only part I can remember is that Kagome leads a group of warriors into a underground tunnel to save other demons, once they liberate them she ends up saving the life of a nobles son. I think?

Also this may be the same story or it may not, but another story im looking for has kagome going to sesshomaru fr help, she befriends a boar demon and then gets trained under a dragon. each of te demons she feels she needs to befriend

Sunset love by Aurora Nyte. Rated MA