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  • Fated (Sans x Reader)
    50.7K 2.2K 20

    PLEASE READ BEFORE GETTING INTO THE STORY: In a story of Undertale where Monsters are bound to the laws of having a Soul Mate, (Y/n) doesn't understand her own role in this world of deceit and cruelty... not until she meets a certain skeleton. While she is best friends with Frisk, the two trust each other at all times...

    Mature
  • Lost in Despair (Lonely!Sans x Mute!Reader)
    431K 21.6K 49

    Press your fingers together, zip your lips shut, and throw away the key. Once it's time to be free, go fetch that golden key and speak. Unless someone stole your golden key and threw it in the depths of the Black Sea; your nightmares and worst fears. ---- "Even if it kills me a second time." ---- The series- First...

    Completed   Mature
  • ||Interesting?|| Nightmare x Reader
    14.1K 516 21

    (IM UPDATING SOON YOU GUYS.. BTW THE DATE IS 12/08/22 AS IM WRITING THIS, IM TRYING TO MAKE A LONGER CHAPTER) Your name is Y/n. You are at your ripe age of 22 years old and are slowly turning into more of an adult. You have struggled with your own issues, and you don't have anyone to talk to about that. Trying to get...

    Mature
  • Wings of the Angels (Birdtale!Sans x Angel!Reader)
    22.3K 590 13

    [ONGOING/REWRITING IN PROGRESS] Angels are often regarded as a walk of life that wouldn't dirty itself by living on earth; however, it seemed that you surpassed the stereotype. You enjoyed your life on earth, living in the solitude of the woods with nothing but nature to accompany you. This was exactly how you liked i...

  • Diamond Pearls
    1.4K 158 29

    [HIATUS] Emilie (Reader) is a gentle and kind person who is on the verge of a mental breakdown due to the mistreatment of her boyfriend, Jericho. Manipulative and narcissistic, her boyfriend becomes Papyrus' best friend. She thinks her fall will never end. But in the midst of all this emotional fuss, Sans will be like...

  • Blood Like Honey (Horrortale sans x reader)
    20.2K 530 16

    You find yourself in a new, dangerous place. You find blood and the stench of death everywhere. Will you make it through this place, or die to a murderous monster?

    Completed   Mature
  • Sunshine Nightmare Sans x Female Reader
    4.8K 60 22

    You are a Kitsune, a Ginko ; a golden fox that lived 300 years and represents the sun. And your goddess Inari; Rice god. Sent you down to earth with other Kitsunes to study the planet earth. [ Multiverse ] You meet up with frisk and his monster Spirits. Frisk befriended you and you never left his side. This angered In...

  • Soulmates - Sans Aus x Kamado reader x (3 only) Papyrus Aus (SLOW UPDATE)
    14.3K 294 6

    (Y/N) Kamado is the oldest sibling of Tanjiro and Nezuko. Tanjiro was carrying (Y/N) while Nezuko is in the box sleeping. What will happen when (Y/N) meets her soulmate?

    Mature
  • Can I take you to Dinner? Mafi-fell!Sans x Reader. [COMPLETED]
    206K 6.5K 33

    "How rude, not even gonna ask for a name??" He teased. "Why are you here?" You glowered, raising the whisk. The skeleton scoffed: "Well, glad you asked sweetums! Name's Sans, Sans the skeleton." - Y/N, a ritzy waitress at Grillby's is plucked from her world of pancakes and Orange juice into the gun-slinging, smoke-bre...

    Completed  
  • Angel (Mafiatale Sans x Reader)
    164K 5.1K 17

    (Y/N) is a local jazz singer at Later's Nightclub. While singing she meets some monsters, and it all turns crazy.

  • My Anomaly (An Error Sans X Reader)
    39.6K 1.4K 20

    When your sibling Chara goes missing you fear the worst, but life takes a surprising turn for the better when they release the monsters trapped underground. Living this new life in your home AU of Underswap things couldn't be better. That is until a certain skeleton appears and threatens to tear apart your Au. Not wa...

  • Universal Surface Angel
    28.9K 1.3K 18

    Reader insert. What if W.D Gaster didn't just get split between time and space, but actually ended up in your world in an abandoned hospital you called home? Your were a young child he decided to use as experiments to test human determination in said world and breaks physical laws to test human possibility? He knows o...

    Completed  
  • Lone (Bitty!Dust!Sans x Reader) DISCONTINUED.
    153K 5.4K 81

    "..Do you think even the worst person can change..?" (Y/n) one day got into a terrible accident, gaining some sort of weird "amnesia" of some sort. She remembers things perfectly clear. But for some reason... she doesn't remember the crash, or what caused the crash. This got her into buying a small "pet" called a bit...

    Completed  
  • That Golden Butterfly {Gaster Sans X Reader}
    18.3K 655 38

    There's a prophecy that's been told among monsters: When the barrier shatters, and war breaks out, there will be one amongst them all, who shall rise up and with the help of a golden butterfly, the monster race shall be victorious. Most of the monsters thought it was all just a fairytale for the little ones to motivat...

    Mature
  • ༻Reincarnation Exists?༺
    20K 1K 8

    The Mc(Main character) Dies and was given a chance to live in another world, only to find out that they were no longer a human, but a skeleton, inside a crib? {Slow Updates!!} {All the art that is Inside the book is made by me unless I mentioned that it isn't.} The book is inspired by: @KarmaAkabane425 @Originalsparks...

  • Not really a skeleton?
    19.6K 741 5

    Ace is a normal Undertale Otaku on her way home from Undertale convention she somehow ended up in Undertale. what will happened to Ace when all sans think she's just another AU? A sexy and badass AU. That all Sans's want to jump 'his' bones. A/N [Please note this story is posted on my AO3 account so please don't leave...

    Mature
  • A GLITCH . . . ? || AU SANSES X F!READER
    157 6 2

    MASSIVE RE-WRITING RN WOOHOOO -═══════ι▬▬ is it true...? That you're a traveler? Welcome, to the story a traveler who traveling through the mutiveres but meet a couple skeletons on her way doing her mission "you seems familiar..." . . . . "oh hoho yeah? Because im famous bad bitch?" . . . "you're a disgrace..." . . . ...

  • Faded Wings [Birdtale Sans x Reader]
    29.3K 1.8K 59

    PLEASE NOTE THIS STORY DEALS WITH ABUSE! IT ISN'T REALLY HEAVY OR DARK BUT, IT IMPLIES IT! SO PLEASE DON'T READ IF YOU'RE NOT COMFORTABLE WITH IT! The sky was beautiful right now. A mix of light blues, the fading of the clouds swirling within it, and the rays of light peeking between. It sent an itch inside you. Oh, h...

    Mature
  • Stone Cold Pacifist (Horror Sans x Reader)
    247K 11.2K 40

    PLEASE READ BEFORE GETTING INTO THE STORY. Your name is (Y/n), and you play the role of an unusual pacifist. In the story of Horrortale, your unique soul allows you to see WD Gaster who no longer holds a powerful connection with the underground due to the inactive core. After your parents are killed, Gaster makes a de...

    Completed   Mature
  • At the Surface (Sans X Reader)
    503K 20.5K 62

    The monsters have finally made it to the surface and have been legalized to roam the surface as they please. The first couple of months have been spent as a paradise where humans and monsters have lived in peace and happiness. But as we all know, humans tend to be afraid of what they don't understand and the appearanc...

    Completed  
  • Void Heart - Remastered
    162 3 3

    The remastered version of my highest read (and only visible) story! A story of a young woman in her early twenties living in the small town of Cameron Mines, residing just west of the fabled Mt. Ebott. Everything appears to be calm and normal in her small town aside from the still growing number of missing miners, al...

  • Binary Stars [W. D. Gaster X Reader]
    2.3K 69 11

    SHE/HER PRONOUNS VERSION * * * * * * * * * * * * * * * * * bi·na·ry star /ˈbīnərē ˌstär/ a system of two stars in which one star revolves around the other or both revolve around a common center "..You know, I think a perfect metaphor for us would be...

    Mature
  • ✨💀Horrortale Sans x Suicidal reader😔👎
    11.4K 235 8

    You have been through a lot. Your done with others bullshit and just want to leave and die by your own hands. So you try and try again But something is off with you. You can't understand but... Your sadness is getting heavier the more monsters come into your life.. *WARNING THIS STORY IS EXTREMELY DEPRESSING AND SHOUL...

  • Functioning With Society | W.D. Gaster x Reader
    9.1K 430 12

    After adventure comes a happy ending. That's at least what the world tries to teach us. They whisper a "the end" but the tale still strives. Maybe it's not written, or coded, but it continues in your mind. Though, this is reality. It was a surprise that the monsters were able to grasp freedom after so many years of...

    Mature
  • Hot Stuff || BOOK ONE.
    34.2K 1.5K 29

    - Long story short: You climbed up a mountain, you fell into a hole, and you didn't bother going back to the surface. And why is that? Because of this hot stuff. - I'm pretty sure the cover says it all, don't you think? And I'm pretty damn sure that THIS is long overdue!! Aww, yeah, baby!! This fire-baby needs so...

    Completed  
  • ʜᴀɴᴅᴘʟᴀᴛᴇs : HOPE [COMPLETE]
    96.2K 2.8K 39

    You were created after Sans. Papyrus was created after you. Your name was: Y/N. You and Papyrus and Sans were subjects to be experimented on. You felt alone in this. Papyrus and Sans was the only thing that kept you determined. You and Gaster were kinda really close. Will you ever get to go to the surface? Ever go ou...

    Completed  
  • Fallen Angel (Gaster x reader) OLD
    148K 6K 49

    OLD AND BADLY WRITTEN THE REWRITE IS POSTED ALREADY DISCLAIMER: The god figure created in this fanfic is purely fictional. He is purposefully made to be prideful and cruel and is not supposed to represent any god. I am religious myself and I did not intend to attack anyones believes with this book. An angel. Sign of...

    Completed  
  • The Faults in Our Souls ~ Gaster x Reader (Under editing)
    42.5K 1.4K 28

    "Do you not want to go back home? To the surface?" °°°°°°°°°°°°°°°° "No." °°°°°°°°°°°°°°°° "Why?" °°°°°°°°°°°°°°°° "Because my home is right here, sitting next to me." _______________________ You were used to the unfortunates of life. Everyone had them, it was normal, but life decided to take a lemon, freeze it, the...

    Completed  
  • My endless depression....•AU Sans X Depressed!reader• (Book 1 To Undersanity)
    68.8K 1.2K 25

    I'm fine... (No I'm not...) I'm okay.... (I'm not okay...) put on a smile no one will see you hurting... (I'm breaking inside....) it doesn't hurt... (I'm used to it...) I'm... *crack* empty.... *crack* inside.... .... *************************************** Disclaimer: undertale-Toby Fox. Cover-Unknown. Warning: ple...

    Completed   Mature