The author of this story requested me to not repost this story. Instead, I'm putting the link in the first chapter. It's a really good story with AU jumping, Sans, Frisk, and a whole lot of great characters. It's one of my favorite stories I've ever read. And now, the description, taken straight from the actual story.
After a harrowing trip through Underfell, Frisk is nearly ready to go meet King Asgore. Their adoptive brother and good friend Sans would rather they go anywhere else-anywhere at all, as long as they don't get to that throne room. After all, in this world, it's kill or be killed.
That's just this world, though. How about the next one over?
DISCLAIMER: This does not belong to me. Neither does the cover.