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  • Just Strumming Along || {Reader x AU! Sans ((and some Papyrus's!)) }
    111K 3.4K 24

    When (Y/N)'s grandma passes away, she moves in her grandma's beach house in Oahu with her ukulele. But what happens when she plays that ukulele by the sea and a "portal" is created? What happens when VERY similar skeletons pop out of that portal? What happens when she is sent to other AU's? And what happens when sh...

  • ♥~• A Competition •~♥ [Highschool Au Sans X Fem!Reader][EDITING]
    69K 1.7K 23

    Your Y/N Wing Dings the younger daughter of W.D Gaster.... Gaster!Sans or G Wing Ding your elder brother... Summer is now over!.. Your Father enrolled you to a school called "UnderHigh"... Where your brother G is there. 'UnderHigh' a school for Humans and Monsters... G told you and warn you about how things are going...

  • NaJ Underhigh "Your Life Story" (AU sanses x Fem!reader) [COMPLETED]
    170K 3.6K 45

    Your name is (Y/n) you have no idea of your past all you know is that your "dad" is W.D. Gaster and your "brothers" are Gaster Sans or Gasts/G and Cross Chara and your "mom" is Arial. You have to go into a new school called Underhigh. Your life was fine and you were happy with that. Through your days in going to Under...

  • [𝐎𝐋𝐃.] 𝐭𝐡𝐞 𝐡𝐲𝐛𝐫𝐢𝐝 | 𝐧𝐚𝐣 𝐬𝐚𝐧𝐬 𝐱 𝐫𝐞𝐚𝐝𝐞𝐫
    210K 4.7K 22

    [OLD AF] Y/N. A hybrid. Half human...half monster. How does that work? Well, Y/N got enrolled into a high school called Underhigh. Will she fit in? Or will she get killed by some unknown stranger? ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ I do not own Underhigh or any of the characters. Nor you.

    Completed  
  • Au sanses x reader (naj!jock and nerd highschool)
    135K 2.3K 36

    Hi readers this is my second book and i hope you all enjoy reading this ?

  • Hurts Like Hell (G!SansxReader)
    191K 7.1K 40

    This is a Slowburn so hate me all you want, I dont care. If you dont like it then dont read it. Basics: y/n-your name l/n-last name e/c-eye color f/c-favorite color h/c-hair color s/c-skin color Setting: Monsters were released from the underground and onto the surface. The Humans were use to living with them but not u...

    Mature
  • For Your Sake (Gaster!Sans X Reader)
    60.6K 3K 20

    THIS IS A SEQUEL BOOK!!! IF YOU HAVE NOT READ THE FIRST BOOK YET THEN GO FIND IT ON MY PROFILE!!! Anyway, now for the summary: After death, you hadn't expected much to happen. You fell immediately into a place like the void. You just wanted to reconcile for what you'd caused, but your heart had a wish of its own. You...

    Completed  
  • Mafiafell sans x Reader
    59.2K 1.1K 25

    1. The art doesn't belongs to me 2. This is my first story 3. This Fanfiction's start was inspired by the comic-artist ' STARINGBACK' And this is my first time writing this soo it's sometimes cringe and dumb... I'm sorry if I make any grammatical mistakes! (Contains: blood, construction Plans and the fuel for the dir...

  • Blown Through The Rift (Gaster!Sans X Reader)
    245K 9.5K 35

    You were working with Alphys in the lab in Undertale when chaos strikes! In a freak accident, concentrated determination is mixed with an unnamed concoction and blow you through a dimensional rift. When you reawake, you find yourself in what seems to be the beginning of Undertale once again. Upset but not overly surpr...

    Completed  
  • Hold Still GXReader
    63.4K 2.7K 26

    (Y/n) has had a rough life, how could it get any worse? Let's let G answer that. ~~ This is a Complete Rewrite of Hold Still! I don't own any of the pictures or Songs.

    Completed  
  • Hey, Doll | Gaster!Sans x Reader
    260K 13.2K 47

    Alone in a condemned world where monsters and humans fight for power constantly, Y/N survives off of the wood's riches and the small scraps of shelter she can find in ghost towns. Allies and friends have come and gone during the war, either killed or have parted ways. It's not all that bad. She could be dead, after al...

    Completed   Mature
  • Maybe One Day (Geno Sans x Reader)
    35.2K 1.1K 43

    (Absolutely beautiful cover made by @EverlovingCheeseCake aka @Ironic_Cheesecake!) What the heck? #1 in genosans? AHHHH- You are officially the ninth human to fall into the Underground, including Chara and Frisk. All you see are the remains of what used to be-the deserted buildings, the piles of dust scattered around...

    Completed  
  • My One and Bonely (Sans x Reader)
    622K 20K 36

    My first story. It's a sans x reader fic, so don't judge too harshly. Also I have some bad pacing issues, but I hope yall will ignore them. Anyways on with the summary! You see monsters everywhere. All of theme unique and friendly. You ask "how could anyone hate them?" When you save one of them, you're life takes a dr...

    Completed  
  • Romeo and Roulette (Mafiatale Sans x Reader)
    68.8K 2.5K 37

    There are certain street rules branded on the hearts of the people of Chicago. Certain rules like always watch your back. The city is thriving with mafias, all of which have a rivalry against each other. Each Mafia has there own contracts and if someone steals it they're dead meat. But what happens when the mafias ha...

  • Kitten (-gaster!sans x reader-)
    77.3K 1.9K 23

    The monsters were freed from the under ground. The humans are racist toward the monsters but the leaders of the human race have decided to restrict any human or monster to harm another to prevent another war.

    Completed  
  • Eyes of Fire (Gaster!Sans x Reader)
    270K 11K 63

    (FAN FICTION BASED OFF OF VIDEO GAME 'UNDERTALE') His eyes were like fire. Amber. Dangerous. But they intrigued me. The flames of his soul danced and encased my heart. It was needless to say that I didn't mind. (COMPLETED)

    Completed  
  • Eyes of Stone (Gaster!Sans x Reader)
    59.8K 3.2K 52

    His eyes were like stone, cold and dead against the blank snow. Hers were like melting frost, swimming in glacial lakes like an undisturbed winter. It was journey of finding and losing her, an adventure of losing and regaining him. A trial to see if their love was truly set in stone. (SEQUEL TO 'EYES OF FIRE') (FANFIC...

    Completed  
  • Horror Sans X Reader
    141K 2.5K 27

    You know what it is about except I'm gonna add that you were abused by your family. And there might be some things that get really close to Lemons.... or are Lemons.... that's kinda up to you personally if it's a lemon or not...just to let you know! You have been warned.

  • i won't let you leave me【Yandere!Sans x Reader】
    88.8K 2.4K 24

    It wasn't fair. Sans had finally saved you, did it the right way without breaking any moral code. And yet, it wasn't enough. So, he decided to play by the rules the world had given him. This was his last chance. No more resets, no more redos or loading or saves. It was all up to him. ...what was so wrong with consumin...

    Completed  
  • A Love Song G!Sans x Reader
    869 42 10

    Y/N She was loving Kind Caring Shes only 18 years old Her parents were killed when she was only 12 and after that she only had her little brother to love in the horrid world of war. (READ THE STORY TO SEE MORE)

  • 'Shy Pet' Underfell Sans X Reader
    217K 5.6K 12

    [Disclaimer that this book is very old nd poorly written, please keep that in mind!] You were shy. You were small. You were picked on. You were told you weren't tall enough. You were hurt. Physically and mentally. He wanted a pet. He wanted someone who wasn't his brother. He wanted someone to talk to. He wanted a purp...

    Completed  
  • a broken Songbird (underfell sans X reader)
    16.9K 401 7

    you were wonderful to anyone you ever met. your voice was like a song. your heartbeat with flutter every time people would ask about you... Someone had a very particular feeling towards. it was dangerous and he looked like the edgy person you would try to avoid at all costs but ever since the treaty between monsters a...

  • Start again (Naj!au!Sans x Neko! Reader) ((Finished))
    190K 4.6K 145

    (Y/N) is a neko who lives with her cat Ayumu. (Meaning:Walk dream, vision) She lives in her cozy home with two bathrooms, a bed room, a living room and a kitchen. (Y/N) is transfering to a new highschool called Au!High because of an incident. Her old school got burned down to the ground. She is a very clever girl and...

    Completed  
  • The Timeline Traveler. AU Sanses X Reader
    110K 2.7K 33

    (Y/N) is powerful, and kind, she has a childhood friend named Aaron, that was missing for many years, but (Y/N) refused to give up, she was DETERMINED. But what happens when her DETERMINATION is to strong, and makes her life takes a twist? Meeting others, making friends and having enemies... What will she do? ~~~~~~~~...

  • A black heart's woes (Evil Sans x Reader)
    56K 1.2K 3

    [discontinued] This book is discontinued, but the rewrite is in progress and already published, so go check that out.

    Completed   Mature
  • The New Exchange Student (AU Sans x Reader)
    5.1K 111 21

    ⚠️ WARNING!⚠️ Viewer discretion is strictly advised! Dark themes such as suicide, self-harm, depression and others will be mentioned and some will be heavily descriptive. There will be foul language up ahead. And whole load of them. If things like these disturbs you in any way. Please proceed with caution! That's all...

    Completed   Mature
  • Story Of My Life (Au Sans X Reader)DISCONTINUED
    8K 124 16

    This is my story. My name is Y/n I'm friends with some skeletons that may or may not like me. (Read to find out) (Also very short chapters)

  • Bad Guys Need Love Too (All Sanes X Female Reader) {On Hold}
    197K 4.5K 26

    This is my first book and I'll try to update on Fridays. Anyways, this story is about a girl who was a teen when she fell down the hole in Mt. Ebott and lived with Toriel for two whole years! One day, she and Toriel were gonna cook some butterscotch pie but needed some ingredients so the girl, who is now 17 years old...

  • Castle's Pet (Bad Guys X Reader)
    454K 13.4K 41

    [Highest Rank: #1 in "sans"] [Second Highest Rank: #18 in "xreader"] (Girls only!) (Earlier updates are on my Quotev account!) WARNING: Profanity and Violence! You were a normal 17 years old girl from the Undertale universe, you fell down Mt. Ebott when you were 15 and you've lived in the Ruins with Toriel. Oddly...