Sans saves his broken soul but is mentally unstable from living countless resets. He pulls you 'The Player' to another dimension destroying the power to save. With his determination he will keep you trapped forever. You cannot escape his love. You cannot escape his L.O.V. ( Choice Based Endings ) ( Yandere Story Ach ) ( Reader X Yandere Sans )

{The continued chapters} Please read the first book on the account @muffinheart1 before reading this one. Thank you and enjoy the rest!} The King is dead, and the people of the Underground are doomed to die in darkness. It was nothing but suffering in the Underground. Empress Undyne was merciless and greedy, only allowing monsters to eat once every two days. It sucked. The people were depressed, supplies were quickly running out. And boy were the monsters of the underground hungry. Human flesh was the only thing that could satisfy hunger. So they ate any human that fell down. But one human isn't up for grabs. She's already been claimed by a certain boss monster himself. And he's not letting ANYONE near her. (YANDERE HORRORTALE SANS X READER) [This story will be based off the original comic of horrortale by sour apple] #1 in Horrortale (2020)

The king is dead, and the people of the underground are doomed to die in darkness. It was nothing but suffering in the Underground. Empress Undyne was merciless and greedy, only allowing the people to eat once every two days. It sucked. The people were depressed, supplies were quickly running out. And boy were the monsters of the underground hungry. Human flesh was the only thing that could satisfy their hunger now. So they ate any human that fell down. But one human isn't up for grabs. She's already been claimed by a certain boss monster himself. And he's not letting ANYONE near her. (YANDERE HORRORTALE SANS X READER) [This story will be based off the original comic of Horrortale by sourapple.]

F/N fell down. Down, down, down the dark hole on Mt. Ebott to find a chilling world of monsters where she meets a creepy flower, a loving goat mom, and... Sans. He claims that nothing in life matters, but she just doesn't believe that. No matter what he says about nothing mattering, she thinks that the world is still worth living in and saving. So she tries to create a better vision for him, but little does she know, the results of her words take an unexpectedly chilling turn. (Beautiful cover art not made by me.)

so I don't see to many horror sans things... or yandere sans that aren't blue. So lets get the basics! Your Y/N. Your an adventurous soul (let's just say that is a soul type and it's goldenish red, so rose gold) you fall down a hole and find a freaky flower. Later you find that a scary skeleton that is a little possessive over you, soon you just take it as protection.. something went wrong, and now you may only has a GhOsT of a chance to survive (please tell me if I spell things wrong)

Sans never expected to fall in love with a human, especially a very short and cute one. But some humans are trying to steal his angel, he wouldn't let them take his angel away, he'll do anything to keep his angel, she's the most perfect creature, non the least a human, he wouldn't hurt her intentionally, even if she left him, he'll just follow her around and kill anyone who is trying to steal her from him. "She's mine, MINE FOREVER!"

(New updated cover) Welp, since you all loved the first two books so much, I wanted to make another. NO LEMONS! ONLY FLUFF! Mostly female reader sorry guys. Mostly be sans aus or papyrus au, if you're a skele sinner here you go. I'm planning on having this book have about 50 parts.

Yup book 2 is out. mostly au sans and papyrus, this is a second book to my one shots. I do not own any of the art unless I say so. Sorry if these are bad I'm still new to the x-reader thing! Enjoy~ No lemons only fluff and yandere's. Readers are mostly female sorry guys! By the way, book 3 is out now :3

This is a remake from my story that got deleted (RIP Undertale Lemons Request Book) Most of these chapters might be Sans and x reader's sooooo Also the chapters before the "A/N or Update" are cringe so read at your own risk