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  • The First Human [X Sans] {COMPLETE}
    104K 3.3K 39

    Imagine Undertale, but Chara never showed up. Chara wasn't the first human in the Underground. What if a glitch occurred, and you fell down instead? You fell into the Underground, but you cant remember your previous life. Now, you are surrounded by strange monsters, who have also never seen a human before. Will they l...

    Completed  
  • My Fault - Underfell Fanfiction (Sequel to Your Fault)
    17.6K 569 20

    {COMPLETED} It has been just two weeks since the event that changed Papyrus' life forever. Too late, it seems, he realized what he had. And now that it is gone, he has fallen to pieces. How, or if, he will be able to cope, he truly does not know. And as if that wasn't enough, there are countless mysteries in store for...

    Completed   Mature
  • Not Just Evil (Underfell Papyrus X Reader)
    165K 5.5K 32

    Underfell Papyrus is viewed as one of the most ruthless monsters in the underground but what is really under that tough persona? Thanks to Tamqul on Deviantart for letting me use their awesome artwork as the cover!

    Completed  
  • ●~My Prisoner~● [UF!Papyrus x Fem!Reader]
    518K 12.7K 56

    [Completed] [[Lemon and Swear Warning]] [2019 Jan Note: This book dates back to 2017, where my grammar and spelling checks weren't efficient due to me being lazy. So I apologize for typos if any.] ---------------------------------------------------------------------------- How much more could a young girl possibly tak...

    Completed  
  • Your Fault ~ Underfell Fanfiction
    49.9K 1.3K 22

    {COMPLETED} Sans' life isn't easy, and living in an Underground society filled with torture, rape, and murder doesn't make it any better. Every single day is a struggle, and Sans tries so hard to fit in with other monsters and live up to his brother's standards, but sometimes it's just too much. Will Sans be able to p...

    Completed   Mature
  • Reminiscent (Sans X Skeleton! Reader)
    23.1K 544 17

    {Completed} {Will not be edited} Reminiscent {adjective} - Reminding you of people or experiences in your past. ☝︎✌︎?︎❄︎☜︎☼︎ WDG - 1S WDG - 2P ?︎⚐︎☠︎❄︎ ?︎✋︎☜︎

    Completed  
  • Undertale
    10.2K 52 36

    This is a novel version of Undertale's Pacifist Run. I hope it reads like a novel, rather than simply a narration of the game. Almost all dialogue is taken directly from the game (except for the protagonist's, which is obviously improvised). In the original document, Sans' and Papyrus's dialogue is in their respective...

  • Undertale X Reader LEMONS
    276K 1.4K 6

    Smut one-shot for Undertale characters. Yep, this is happening.

    Mature
  • Loving Every Bone in Your Body
    45.3K 2.5K 53

    Sometimes, you liked to imagine that Frisk was this kind and sweet because of you. That, maybe, you had lived up to your promise of being the best sister you could be when they were first born. ...That you taking the brunt force of your abusive parents was worth it. You had protected them from the reality...

    Mature
  • The Soul Within Us (Sans X Reader)
    72.7K 2.2K 28

    (Sans x Reader Slow burn. Cover drawn by me :D) They made it to the surface. Again. But how long will it last? Frisk made a promise.... But how long will they keep it? Sans is unsure, and anxious; depressed. A smile with sad eyes as usual. Then he meets y o u. Heh.. Did you really think you would change anything...

  • 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
  • A Paw-some friend (Sans x Werecat!Reader)
    1.7K 49 12

    You've lived on Mount Ebott your whole life, spending only some of that time with the child you've come to adore. But, they go missing one day, and it's up to you to follow and find them and keep them safe. Little do you know that you're about to go on the craziest adventure of your life.(There could be possible smut...

  • Soul Mates (Sans x reader)
    216K 5.4K 30

    Uh

    Completed  
  • My Soul? It's Yours.
    92.1K 3.7K 26

    You become a citizen in Snowdin due to being lost in the undergrounds. You had left Toriel and the ruins only to be greeted by someone you would've never thought to be so important, or essential, to your life. *warning: might get serious and have adult content in some parts also maybe some spoilers for both the pacifi...

    Completed   Mature
  • WILTED: A Sans X Child Reader Story
    336K 9.3K 49

    [I have decided to do what I always wanted 😄😄]:some people put warnings for these so.....CHILD ABUSE IS DISCUSSED You were, thought to be mute and was horribly abused by your mother and because of the psychological trauma , you can't bring yourself to trust people......youve fallen and you find yourself alone...unti...

    Completed  
  • Furtastic
    47.3K 1.5K 25

    A girl who has never seen the world outside of the lab sees it for the first time only to fall down into the underground. What will she find down there?

    Completed  
  • (Sans x Reader) When Two Souls Meet
    946K 27.2K 28

    Sans has lived through countless timelines. He's seen the kid make friends with everyone, only to give up in the final moments. He's seen the kid killed, over and over and over again. Sometimes, he'd even done the killing himself. And no one ever remembers. Not even the kid herself. It's an exhausting cycle, one that...

    Completed  
  • What We Hope For (Sans X Reader) ✨UNDER EDITING✨
    129K 4.2K 62

    Everyone has a happy ending. If you're not happy it's not the end . . . . •°•°☆°•°• Y/n (that being you) fell into the underground at the age of 13 and found refuge inside a hidden house in the snowy forest. Fast forward 10 years later still no one knew of her existence. That all...

    Completed  
  • What We Fight For [Sansxreader]
    7.5K 227 17

    [THE SEQUEL TO WHAT WE HOPE FOR] If you haven't read the first book then I recommend going there first. °°°☆°°° Picking up where we left off, the group has made it to the surface. Y/n and her friends now have to figure out their life. With y/n, there is her duty as an ambassad...

  • I'll Save You (Sans x Abused! Reader)[FINISHED]
    87K 1.9K 21

    (Y/N)'s parents abuse her since she was the mistake in the family. MONSTERS has been released from the underground by Frisk. Frisk And (Y/N) go to the same college (Frisk is older in this). Little does (Y/N) know , she met someone who who cares for her. What will (Y/N) do??

    Completed  
  • Wilted [ Sans x Flowerfell! Reader ]
    117K 4.4K 20

    You were afraid. For the first time in your life, you were truly afraid. You weren't afraid of the never-ending darkness that had now consumed you. You weren't afraid of the monsters underneath your bed. You were afraid of the flowers.

    Completed  
  • When Two Fates Intertwine (Sans x Reader)
    91.6K 2.5K 13

    [THIS IS A SEQUEL TO MY OTHER FANFIC "WHEN TWO SOULS MEET!" If you haven't read it, I would highly suggest it--the story won't make much sense otherwise.] Sans has finally found someone he can trust--Frisk's sister, the eighth fallen human. After months of step-siding and awkward interactions, the two are finally a co...

    Mature
  • Lights Like Stars (Sans x Reader)
    143K 5.3K 37

    It's been over a year since the Underground opened up and the monsters living under the earth swarmed to the surface in their thousands. The human and monster governments are taking their sweet time coming to any kind of agreement regarding monster rights and citizenship, but for the most part, in the less politicall...

  • 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
  • Save Point (Sans x Reader)
    115K 6.1K 124

    (Sans × Gender-Neutral! Parent! Reader || Slow Burn) Moving from a backwater town to a city bustling with human and monsterfolk alike, some things begin to change both for the better and the worse. What was left behind comes back to bite at you in the most unexpected times, current progress being put in danger as a re...

    Completed  
  • Underrising Love (Sans X Reader)
    101K 2.7K 32

    Monsters have returned! (Y/N) is waisting no time to find out more! After running into a hyper skeleton twice you slowly start meeting and growing attached to a new group of monster friends. One however is more likeable then you thought. (This is Sans x Female reader)

    Completed  
  • Money, Jokes, and War (Sans x Reader)
    27.5K 1K 29

    A young girl, Y/N, has one of the rarest soul types- -empathy. She can feel when people are having a bad day which leads her into meeting two skeletons. While one quickly takes a liking to her, the other is more suspicious than anything. Will he ever get over his suspicions for her, or will the looming war between the...

  • At the Surface (Sans X Reader)
    504K 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  
  • 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  
  • ᴛʜᴇ ʀɪᴠᴇʀ'ꜱ ʀᴇɪɴᴄᴀʀɴᴀᴛɪᴏɴ -DISCONTINUED-
    21.6K 1.1K 16

    The RiverPerson is truly a mysterious monster, only known as to sing and to help you travel place to place, they were an NPC, surely he wouldn't be him, right? Oh how wrong he was. =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= Status: DISCONTINUED.  Started: 6/11/2021 Ended:9/8/2024 =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+= I don't own the g...

    Completed