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  • 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  
  • The Only One Like Me (Sans X Reader)
    33.5K 962 17

    Not everyone is special enough to know exactly where the Underground's secret entrance is. Not everyone is so special as to accidentally fall into it, either. Of course, that is what the Reader did. They meet the whole gang, and one skeleton in particular stands out from the rest, simply because he's the only one like...

    Completed  
  • Divided [ Sans X Reader ]
    362K 14.9K 56

    Almost four years marking the anniversary of monster kind reaching the surface, the human ambassador Frisk goes missing. Severing the link between the two species, an all out war breaks between humans and monsters. After bloodshed on both sides, monsters emerge victorious. Yet somehow a miraculous town in San Francisc...

    Completed  
  • I need you (Sans x Depressed/ Abused Reader)
    16.3K 418 27

    Y/n was told to end her life.. she tried. Little did she know she jumped into the wrong pit.. (In Progress)

    Mature
  • ✘ 'Two Connected Souls' Undertale Sans x Reader Soulmate AU
    14.5K 416 15

    (DISCONTINUED) 'A young girl has just been living her life normally; until she turned thirteen--the age where you can find your soulmate. That was when this young girl and their parents--found out that her eyes not only changed colour, but she also had a tattoo/soulmark.' 'For years humans have been born with the abi...

    Completed  
  • A New Soul (Sans X Female Reader)
    182K 3.2K 31

    (Y/N) absorbed a monster soul when she was little, gaining skeleton powers. Many years later, (Y/N) and her sister Frisk fall into the underground, meeting Toriel, their new mother, Papy, Undyne, and of course Sans. Will (Y/N) and Sans finally realize that they have feelings for eachother, or will Asgore find (Y/N) be...

    Completed  
  • Bruised To The Bone: (Sans x Reader)
    118K 3.8K 52

    (Y/N). A peculiar soul; A human core, with a skeleton's power. Her parents are ashamed of her, beating her every time they catch her using magic. One day, she accidentally hurts someone, and they bring her almost to the point of death, trapping her in her room. After the incident, time has begun to reset. Two months p...

    Completed  
  • The Bone Warrior (Sans x Female Warrior Skeleton)
    33K 1.1K 15

    Your name is (y/n) and you have lived on the surface as a royal guard for the science department in the monster areas. Your species is skeleton, there's still a good amount left of the skeleton race but then the monster side of town broke into chaos and war. You were manning your post when you see humans running after...

  • Save Point (Sans x Reader)
    113K 5.8K 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  
  • On Days Like These ❀ Undertale /On Break/
    65K 2.7K 28

    You have a routine; jog, relax, and work. It may seem mundane to most, but for you it's comfortable, easy. It keeps you in your bubble. And you wouldn't change anything about it. That is, until two skeletons move in next door, and you discover that their lifestyle is a less than conventional one, but one you're going...

  • Magic Humans and Monsters (Sans x Reader)
    13.7K 738 40

    -FIRST BOOK OF THREE- Ever since the War, magic humans have been training to kill all monsters when they escape. They've even built a special school designed for teaching young magic people how to use their powers for destruction. Y/N was a magic person, born of nonmagic parents. But Y/N is not a vicious person and d...

    Completed  
  • You Look Like A Million Bucks (Sans x Reader) [COMPLETED]
    41.8K 1.5K 12

    (Y/N) is an eighteen year old millionaire, she lives in a beautiful mansion and has more money than she knows what to do with. It seems like she has everything a person could ever want, but...she doesn't have her parents. She lives in isolation, she hasn't trusted a single soul ever since her parents were murdered...

    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
  • Unexpected Love | Sans x Reader
    321K 9.7K 35

    You climbed the famous Mt. Ebott to prove to a group of your friends that humans don't disappear when they go up the mountain. While walking around the peak, you trip over a root in the ground and fall forward, expecting to hit the ground. Instead, you were met with open air. As you fell down the large hole, you let o...

    Completed  
  • Pills
    1.2K 103 1

    Toriel has noticed something about Sans. Every few weeks he comes home rather late, and sneaks something into his room. As it turns out, it's a bottle of pills. Thinking he was becoming addicted, she threw the medicine out. Wrong move. (Inspired by The Owl House, cover is my art)

    Mature
  • Fated (Sans x Reader)
    50.6K 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
  • Can You Hear Me? *REWRITE*
    17.5K 1.2K 17

    You were in your element when you stood on a stage. You could confidently sing the melody, serenely take the harmony, basking in the attention and relishing in the feel of your heels hitting the stage and the strain of your vocal cords. You'd been singing for fours years, but the best career decision you'd made was jo...

  • Blue Roses (Undertale Angst One-Shot)
    966 59 1

    Sans is dying, and he isn't going to be coming back this time. The world of Undertale seems to have finally reached the perfect point of happiness. The player is no longer able to control anyone in the game, and Undertale can no longer be tampered with. Now, years later, after true happiness and content-living seems t...

    Completed  
  • 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...

  • wrong number | sans .
    31.8K 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
  • *DISCONTINUED* Can you hear me? [Sans x Reader]
    593K 21.4K 45

    *Discontinued* This is the original version of Can You Hear Me? in it's unedited form. Monsters were back on the surface! But not everyone was happy with the change... though you aren't one of those people! Happy as a (relatively) popular singer, you were oblivious to the growing discontent. That is, until you met Met...

  • Sans x Reader | Empire
    382K 11.8K 46

    (Adult Lazarus here - I wrote this when I was like 14 years old. Forgive me.) Sometimes life gets to the point where you feel like you're a paper airplane. One minute you're soaring, feeling as if nothing could ever get you down. But then the next thing you know, you're falling slowly and nothing that you can do can p...

    Completed  
  • (Sans x Reader) When Two Souls Meet
    939K 27K 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  
  • Dying Light (Sans X Reader) (sad)
    162K 5.1K 35

    Like the title says, it's gonna be sad. But there is a happy end to it I promise!

  • Soulless (Undertale FanFiction)
    45.5K 1.4K 41

    In the world of Undertale, it's supposed to be killed or be killed. This means for many, you have to fight if you're gonna survive. But in a world of fighting on a spiritual plane, how do you fight without a soul? The rumor of red-heads having no soul was nothing but a rumor until the girl was born. Still able to feel...

    Completed  
  • Despite Everything, It's Still You. (Sans x Reader SLOW BURN)
    360K 17.6K 101

    (This story contains 18+ subjects. Please read the tags.) You're at your limit. Life has never been the kindest, in regards to you. But now, it's just getting to be too much....something has to give. So, you decide to make a change.... ....and as a result, fall down a giant hole. Yeah, life's funny like that.

    Mature
  • Repo Man (Mafia!Sans x Reader)
    53.3K 2.2K 21

    In a startling post-apocalyptic world, society is divided into two orderly classes. The human race stands on top, untouched by nuclear war in the city of Chicago. Monsters are at the bottom of the food chain, confined to live in run-down apartments, minimum wages hard to come by, the backbone of the work force in Chic...

    Completed  
  • Just give up, I did (Sans x deppresed!reader)
    100K 2.7K 21

    One day you just need to escape from harsh reality, maybe the stories of Mt. Ebbot are true? *Trigger warning, this book does get dark*

    Completed  
  • Undertale- The Deeply Forgotten Sans X Reader
    60.2K 1.8K 40

    "You have fallen back down? Why must you keep coming back?" "Who are you?" "You've got lucky this time they have forgotten its a new start. Please choose wisely its your last chance." The voice faded away and so does your conciseness.

    Completed