Something Unexpected{Supernatural/Undertale}

With Sam having his soul once more, and his memories of Hell locked away behind a mental wall, the Winchester brothers are attempting to track down the Mother. With Castiel preoccupied on stopping Raphael, the brothers along with help from Bobby seem to be working this case alone. However, while their attempts to track down the Mother are so far unsuccessful, they didn't expect to be involved in another case that becomes much more than they first thought.

This story is an Undertale meets Supernatural type of thing. It takes place somewhere near the end of season six in Supernatural, and a few months after the true pacifist ending in Undertale. All of the monsters are free, though Frisk has chosen to not accompany them.
I hope you all enjoy this story, it may take me a while to post chapters so hang in there X3. I apologize for any errors, grammar or errors with character's personalities and the plots of both universes, this is my first lengthy story and I am not a very experienced writer ^^'. Please feel free to leave any comments and critique for me to better improve my skills and the story, everything helps!