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  • Her Guardian || Demon! Dream Sans x Reader
    30.7K 1.4K 62

    When a demon summoning goes wrong, a rich and powerful man's son gets killed and (Y/n) is forced to team up with the Demon King that did it to survive the ensuing attempts on her life. | Set in the same demonic skeleton universe as my demon Nightmare book with a different story, it's my take on the simple question: ''...

    Completed   Mature
  • Justice (Ink!Sans x Reader) [COMPLETED]
    27.3K 963 19

    Heya! This book will be a bit of a slow burn, which means that all the ~romance stuff~ won't happen until a little later in the story. ~~~ Twenty year old (Y/N) has sworn her undying loyalty to none other than Nightmare, one of the most feared villains in the multiverse. She's been working with him for years, since sh...

    Completed  
  • The queen of Nightmares (Nightmare Sans x reader)
    14.3K 650 65

    From my Ao3 acc! Thats how you know it's semi-good lol. A handsome new monster falls in love with you... but will he accept you as you are, or will you have to change? BIG THANKS TO MY BETA READER

  • His Summoner || Demon! Nightmare Sans x Reader
    88.3K 3.2K 74

    When a demon summoning goes wrong, a rich and powerful man's son gets killed and (Y/n) is forced to team up with the Demon King that did it to survive the ensuing attempts on her and her family's lives. But the King will only do it on one condition: he gets her soul. So with no choice but to die for her mistake, His S...

    Completed   Mature
  • Show No Fear
    99.5K 4.1K 31

    Aliza has created another reset only this time she isn't facing the horror house alone. He older sister has joined her, however her older sister doesn't seem to be able to show fear. What would happen when Sans meets her? How is she there? *Art and alternate Sanses or undertake universe I guess, belong to their rightf...

    Completed  
  • A Place Of Despair (UF!Sans x Depressed!Reader)
    75.3K 3.4K 51

    - Underfell - Life was a waste, superfluous and horrific for a young woman. Hatred for life and, most prominently, hatred for herself have absolutely destroyed her. She's done. She wants to be gone. But it doesn't work- and she falls into a land of evil, with more hatred than even she has. She finds out a terrible tr...

    Mature
  • Playing with my food. (Horror sans X Reader)
    45.8K 2.3K 137

    Y/N is a young adult who attends college regularly as they should. They live in a low class overpriced apartment due to the lack of funds to buy a dorm. Their life is boring and they're tired of it until one day disaster strikes their Universe, and is kidnapped by the attackers as a 'pet' But to one of them they are...

    Completed   Mature
  • Summoned (Nightmare!Sans x Reader)
    83.1K 2.7K 27

    (Y/N) didn't want to be friend the popular kids. Nor had she ever dreamed that she would have a sleepover with them. But boy is she wrong when she is forced to go with the popular girls for a one night sleepover. But what (Y/N) doesn't know. Is that her life will change in that very night. "Well well well, look what...

  • Six Skeletons and The Waitress
    267K 12.3K 49

    A picture perfect family hides the fact that your life is filled with manipulation and abuse. When you move away after high school, you encounter more than one skeleton monster that often tests your anxieties. Hey...why are they acting like that? *updated description Published: August 16, 2019. Average word count: 5...

  • A Dangerous Love (Underfell Sans x Reader)
    32.7K 976 48

    I DO NOT OWN THE COVER **TW** THIS X READER CONTAINS SEX, VIOLENCE, SELF-HARM AND SUICIDAL THOUGHTS. IF ANY OF THIS TRIGGERS YOU, PLEASE DO NOT CONTINUE. I couldn't take it anymore... I wanted to end my life. She's dead now and I didn't have it in me to help... Watching helplessly as her body drained of blood... That...

    Mature
  • Torn
    78.8K 2.8K 35

    [Yandere!Underverse x F!Reader] [updates every weekend, 3k - 6k word chapters] What does the fate of the Multiverse have to do with you? In your past life, you experienced nothing but irony and a cold black drop, so why is it then when you're taken away everything suddenly revolves around you? You never wanted this...

    Completed   Mature
  • Malevolence {Nightmare!Sans x Reader}
    11.5K 473 17

    Being an adult is hard. At 21, (Y/N) is struggling to get by. After dropping out of college, she lost all of her hope and motivation. Thankfully, her older brother Jake has her back and he let her move into his lavish home. (Y/N) decides to stay with him until she can get back on her feet. One day, a mysterious "fami...

  • Don't Forget [Sans x Female Reader]
    26.1K 2.6K 39

    You would think that with how shit your luck is, you would've been dead day one since falling into the Underground filled with scary monsters and a few spooky skeletons. However, much to your surprise, that did not happen (yet). You know how you ended up here, but you don't know... HOW. You're actually in the GAME Und...

    Mature
  • wrong number | sans .
    32K 2K 16

    While working on the machine, Sans receives a text message from an unsaved number. It first starts out on one slow night that quickly evolves into eagerly waiting for a message from this unknown person. Sans is cautious but he can't help but feel drawn to this one person - despite that he never had met them before.

    Mature
  • A Little Bonely (Sans X Reader)
    344K 8.5K 51

    Monsters always fasinated you. Ever since Frisk broke the barrier and freed the monsters, humanity didnt take it too well but they are slowly getting used to it. Slowly. Very...slowly. (btw Chara is depicted as a female in this story, and so is frisk. Dun be triggy) HEY ALL! This is my first fanfiction EVER! so dont j...

  • Your World
    10.8K 717 45

    You are Y/N L/N and this is your world. This story isn't particularly full of fluff. It's not meant to be happy go lucky. It's not meant to be some perfect world. This story is about family. So if you can handle all the ups and downs that come with it, well you're welcome to I guess. This was our world and we are goin...

    Completed   Mature
  • Into You『 AU Sans x Badass!Reader 』
    140K 6K 18

    • Art is by kane__i on Twitter • [Fem!Reader] 『 The group of skeletons were taken aback by the unexpected appearance of who exactly? You, of course. They all gasped in alarm and almost fell into a messy pile of bones. You were starting to think you worked out too much and were beginning to hallucinate. You just wanted...

    Mature
  • These Skeletons Need an Emotional Support Human (Reader X Multi Undertale AUs)
    7.6K 374 43

    You were a human who had made mistakes in your life, but then again who hadn't. Your mistakes however led to you barely scraping by, pinching every penny to afford food and rent. Until a chance encounter with a skeleton in a grocery store gives you the opportunity of a lifetime. He says his roommates fight over everyt...

    Mature
  • Discordance In The Balance (Nightmare and Dream x Corrupted! Reader)
    21.8K 665 20

    After becoming friends with none other than the guardians of the tree of feelings, you realize more things are going on than the guardians care to reveal. After attempting to help them you end up corrupted and your friends trapped in stone for 500 years. . . Currently rewriting!! This is a sans x reader fanfic so don'...

    Completed   Mature
  • You Can Be Happy || Sans x reader ||
    20.5K 945 32

    >> Aren't you ready for a different one? << Where Sans isn't attracted to you from the very beginning? Where he wants nothing to do with you? ~~~~~~~~ ~~~~~~~~ You are 20 years old, living alone, and you love exploring. Searching for beautiful places to admire nature and to escape reality. You miss your companion in...

    Mature
  • My Villain [Dust Sans x Reader]
    78.3K 2.1K 52

    A young woman, left alone after her family sadly passed in a car accident, suffers with PTSD and Anthropophobia (Fear of people.) Her only happiness in this world is the view of the stars from Mount Ebott. But one day, Y/N falls into a large abyss located on top of the mountain. There, she enters the Underground. The...

    Completed  
  • The Ghost Above Me (Gaster x Reader)
    45.7K 1.7K 33

    Even though the Underground is now empty, except for some people, you still stupidly managed to fall in the once prison for monsters. Who knew you would get away from the prison with someone following you behind your back? Who would have known an echo flower would have revealed too many things? Who would have known yo...

    Completed  
  • Daughter of Death
    119K 6.9K 47

    Cover artist: punny-puntasy ! (TOLD IN YOU/YOUR) A reaper, a few gods, and a bunch of skeletons. The life of a reaper wasn't boring to her, everyday she would gather souls and lead them into eternal rest, and repeat. She watched creatures and Humans die, easily surpassing their lives and meeting once again in the un...

  • A "Human" That Likes A Skeleton
    241K 9K 83

    Began on: August 24, 2016 Completed on: August 24, 2021 The Underground Barrier has been broken for three years, and you're a girl with a secret, one day you're walking back home to your apartment after a grocery trip, when you bump into someone, little do you know that someone had a role to play in your near future...

    Completed  
  • The Smell of Old Books (Sans/Reader)
    258K 14.7K 38

    The old bookstore wasn't your home anymore, you finally realized. It was with them. It was with him. (Sans (Undertale)/Reader. The story takes place in second person view. Reader is not Frisk!) (art is by @Elmer_Heiji on twitter)

    Mature
  • Cadaverous (Horrortale Sans x Reader SLOW BURN)
    10.4K 682 7

    (This story contains 18+ subjects from the start. Please read the tags.) Forever is a long time. And being immortal, you sadly know that better than anyone. Now living in a world gone mad with hunger and death, there's only one thing that's important to you - the health and happiness of your sister. Yes, that's all...

    Mature
  • A Skeleton's Hope (Rewritten!)
    15.8K 577 10

    Sans and Papyrus were your best friends until randomly they just cut off all contact with you. This went for everyone else in your life so it didn't really hurt that much when they did. The only question is why they didn't do it sooner. So after two years of loneliness, what was originally a drop off turned into a ho...

  • New Souls (Cross Sans X Reader)
    105K 2.4K 23

    You are a somewhat normal girl that explores with your friend, you are a secretary person until you meet a dashing skeleton by the name of Cross but one thing still remands on your mind, why do you exist if you have no soul? This fanfic will have an abused and depressed reader in it, so if you are sensitive to those...

    Completed  
  • Black Roses (Overprotective!Bad Guy Sans' x Child!Reader)
    471K 13.8K 41

    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...

    Completed  
  • Forget Me Not (Dt Sans X Reader)
    29.5K 754 23

    It wasn't your fault you were in this situation. It just happened at random chance, now you were stuck in a loop. A endless repetitive loop of death and obsessive love. He wanted to keep you forever, and if it meant becoming a monster worse than anything, he'd be okay with it. After all, he LOVED you~ Heyyyyy Someth...

    Completed