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  • My Blue Heart (Sans X Female Reader)
    87.6K 2.6K 58

    "H-hello?" "Are you ok?" "You're my world." "What if it happens again..." "Don't forget." "(Y/N)!" "I won't leave you." "I-I love you." "I'm sorry." "Nightmares?" "gnimoc s'eH"

  • Underfell Destructions Pearl
    92.7K 3.6K 30

    Your friends have dared you to go into the cave that no one had ever returned from, The grusome legends date back for as long as you can remeber. After falling down into a hole that has no escape you must face up against Monsters. who are relentless killers and your only friend is a strange talking flower. Will you su...

    Completed   Mature
  • Aftertale Sans x Reader
    180K 4.5K 52

    This is for those who think aftertale sans is either hotvor adorable.

  • Sorry About That (Gaster!Sans x Reader)
    72.1K 3.6K 27

    You worked for the newspaper, doing a simple editing job and a few other things here and there. Ever since monsters came out of the ground, though, rent has sky-rocketed for you. You thought you could deal with it, but after a few months you need a roomie to help with the rent. Which, fortunately, you got one! But, un...

  • The 6th Soul | Sans x Reader
    140K 5.6K 26

    "Do you think even the worst person can change, that everyone can be a good person, only if they just try?" -- If you want to read a good book, go on my account and read chat logs. This one is shitty -- Justice. That's the trait of you, (Y/N). The 6th soul fell into the underground. She wasn't alone though, she had...

  • The 6th Soul: How to Kill a Man | Sans x Reader
    74.7K 3.5K 23

    [ SEQUEL TO THE 6TH SOUL ] "What do we do now? "Simple. We hunt the Hunter." -

  • Photograph Echofell Sans X Reader
    70.3K 2.7K 20

    What's going on? Why is this happening to me! You were an experiment and he was a failed one what will happen when you two meet in a dystopian world?

    Completed   Mature
  • Undertale- Mysteries- (Sans x Reader)
    23K 947 20

    A heart capturing story about you, and a corny skeleton.

  • Sans x Reader:You Are My Strength
    14K 596 13

    The world has been reset once again. The previous story line was a genocide route. Sans is happy to have his bro back. The time has come again for another child to fall down the hole. This time Sans is going to make sure this human will go down the right path. To his surprise a teenager has fallen, instead of the usua...

  • You're PURRfect For Me{Sans X Neko! Reader Book One in the Save File series}
    58.9K 1.5K 35

    Its been a year since Frisk and their gang freed the underground. Humans got used to it but youve never met one. You've actually never gone outside your house. Your..your not exactaly a human nor a monster. With cat ears and cat tail people call you a monster, others call you a 'it'. Your friend mainly takes you stuff...

    Completed   Mature
  • Opposites attract (Werewolf! Sans X Neko! Reader
    51.8K 1.5K 26

    You find secrets, have embarrassing moments, and fall in love with a special skeleton who loves you back! Here's book two!!

  • Lost in Despair (Lonely!Sans x Mute!Reader)
    375K 19.3K 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
  • BARRIER BREAKER 9000 (Sans X Reader)
    71.1K 2.1K 30

    You are a 21 year old scientist. You love your job and never give up. One day you built a machine that took 7 years to make. It is going to help monsters get to the surface. But you fall down a whole meet new friends, and gain a crush. Session 1: Complete Session 2: Progress Oh yeah so I'd like for you to read both...

  • A Gun and Some Catnip{Mafia!Sans x Neko!Reader}
    96K 2.8K 46

    In this book you will be a girl neko. It just makes our lives easier. You are a white cat neko named (Y/N). You love to draw and color. The monsters have been free from the underground for about 1 1/2 years now. Lets just say that... the monsters and humans didn't get along. There were revolts against the monsters and...

  • Oh, how humerus! [a Sans x Reader]
    80K 2.1K 36

    undertaaaaaaale!! bruh, sans is my spirit animal

  • A little chilled to the bone. (Sans x Reader)
    120K 4.3K 33

    After falling down Mt.Ebbot, you find yourself in Snowdin, a small town in the UNDERGROUND where two skeleton brothers live, Sans and Papyrus. These brothers are vary quirky, one being a Spaghetti-fanatic with a dream to be in the Royal gaurd, and the other a calm, laidback enigma who can't stop cracking puns. But, wh...

  • Hidden Inside (Gaster!Sans X Reader)
    84.5K 3.4K 31

    After the monsters are set free, they aren't too keen on befriending humanity. They won't show themselves yet. They will get revenge on the war the humans had waged years ago. Now they attack in secret, getting patrols and assassins prepared at nightfall. One of the pairs of assassins is Gaster!Sans and his brother. W...

  • Punderful Colors (SansXreader)
    94.7K 3.3K 34

    "How could you kill him after he gave you mercy" "..." " He spared you...he trusted you..." "....." "...I trusted you..." "........" "...i used to love you...and if you love me... Y O U, W O N T, C O M E, B A C K" You wake up... but your empty... you can't go back... you love him...and always will...

  • Just Like Before (A Gaster!Sans x Reader)
    50.5K 1.5K 29

    ♦Highest Rank :#714 In Fanfiction! ♦ Y/N fell down the Hole of Mt.Ebott when she was 8 years old. She lived happily with Toriel and with Other Monsters. She has a best friend named Gaster!Sans.She calls him 'Gas' for short. They always play at the Castle where Y/N's home is. Y/N broke the barrier before she and gas be...

  • Start A New Again •Sans X Reader•
    9.9K 324 43

    Knife in your hand. The still air in the hall sends chills down your spine. You've been here many times before, why does it feel different now? I've been here about 50 times... the same faces, the same bloodshed, the same timelines all over again. But this time, it... this. This doesn't feel right. There he is, as alw...