Want to talk about falling into the wrong place at the wrong time? Y/N definitely scored big time on that one. One moment she's falling, the next she finds herself trapped underground with a monster that wiped out his own kind. He's a cold-blooded killer that never shows any emotion. Though, as time passes, she finds out that Sans isn't as heartless as he plays himself to be. Hello! Writer~San here! Cover art and Undertale AU/Characters aren't mine, but the story definitely is. I hope you enjoy it!!!!

Nightmare found a young child a long time ago. When they fell into a coma it sent him over the edge. several hundred years later the child wakes up in a castle of darkness, surrounded by people, er... skeletons, that they don't know. Now they are being raised by murderers, cannibals, and world destroyers. Oh yeah! And their Uncle is the god of Death. Fun. WARNING (but not really): This story has been known to give people heart attacks and possible death from wholesome cuteness. I am not responsible for said medical emergencies or deaths. Read at your own risk. ~~~~~~ || Few things. 1) The first couple of chapters are going to basically just be Nightmare, but it's for plot reasons. 2) Dream is definitely going to be a little ooc. Don't like it, don't read. This is just for fun. 3) Like I said, this is just for fun. So, updates are when I feel like it. 4) I'mma try to keep the pronouns for (Y/N) gender neutral, but I may just drop that at some point. Depends mostly on what you guys prefer. 5) any art or videos added are not my own unless explicitly stated. Cool? Great. Let's get started.

Life seemed easy up on the surface living with the skeleton brothers, but you had always been more fond of the youngest of the two, Papyrus. After an accident down in the lad you and the brothers got dragged thru time and space together with some others. Things get complicated when some of the guest finds out your their soulmate. It just getting harder when they find out there are only one of you through the multiverse. Undertale, Underswap, underfell, horrortale, Fellswap Papyrus x Reader

This is an alternate version of you, from a different universe, and yes things in this universe will be different from your current universe. Anyways, now to the bitty part...so, how this version of you comes to meet bitty sans is...bitty sans winds up traveling from the bitty universe to this one, via running away and then getting mixed up in some stuff that you will find out about later then winding up at your house...also there are things in this Bittys past that are not happy, leading him to run away in this first place, and with this it creates a distrust and fear of anyone new, so he will be very wary of you at first, but your kindness will eventually win him over...and yes because this is a (reader x) there will be romantic feelings that show up eventually...it might be weird because of how Smol sans will be but, if you decide to read this then, you must know this already...i am recently getting in to the bitty sans universe so I don't know everything, however I did my best to thoroughly study as much as i could about it before writing this..anyways, I hope you enjoy reading! And...uh...bye! :p