So uh…how did you even get wrapped up in…any of this? Sans(Or well, classic as he was being called at the moment since it was easier) and your Papyrus had received an invitation to a Christmas party. A party that spanned Alternate universes apparently. After a really long and honestly very confusing talk explaining what the ‘AU’s’ were and how they worked Sans and Paps invited you along! You decided what the hell and went.

Now your head was starting to hurt but you think you had most of it down.

There was Geno, the host; he seemed to be wary around you, maybe because you’re human? Underswap Sans and Papyrus who’ve been dubbed Blue and Stretch respectively, like the Sans and Papyrus you knew but their personalities were swapped. UnderFell Sans and Papyrus (Red and Edge). They were definitely scarier than your Sans and Papyrus were. There was also a Sans who said he was from ‘ScienceTale’ No papyrus, just Sans. He was being called Sci.

There was also…this weird guy in the corner, you think his name is Gaster maybe. He’s acting like he’s on something.

You were replaying that in your head when the underswap sans, Blue(?) came up to you.

“Heya! You must be the human Classic invited along, nice to meet’ya! You can call me Blue.”