Bitting Bones (HoneyMustard)

Non of the characters belong to me nor does the cover.
Underfell was created by Kaitogirl
Underswap was created by Popcorn Pr1nce

So this is obviously a under swap papyrus x Underfell sans if you don't like fontcest then why are you here?

Sans yet again got a beating from his brother. This time leaving another crack, physically and mentally. Sans was tired of it. If he wasn't needed he'll just go and let someone else be his brother's toy.
On that night he left for better or worse and ended up in underswap going through a portal left behind by either error or ink sans in search of a new universe.

Warning* Swearing, blood.