Undertale
197 stories
Undertale/au x reader 3 by Broken-fnaf-fan
Broken-fnaf-fan
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(New updated cover) Welp, since you all loved the first two books so much, I wanted to make another. NO LEMONS! ONLY FLUFF! Mostly female reader sorry guys. Mostly be sans aus or papyrus au, if you're a skele sinner here you go. I'm planning on having this book have about 50 parts.
Feelings Are Overrated ~Killer X Nightmare~ by OreoCookie1129
OreoCookie1129
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In order to be seen as not soft Nightmare buries his feelings down deeper than his soul. What will happen when those feelings start to rise to the surface. Will there be kindness in his soul, or will his soul forever be a pile of goo. Killer and you will have to see!
The Colorless Guardian  by Moonlight_Malaysia
Moonlight_Malaysia
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When a loner got reincarnated as Ink! Sans. What could possibly happen? Warning ⚠️ #Error is neutral/ not a part with Nightmare Gang #No romance #Short chapters #I'm a newbie...
Broken Souls by KattraKnit
KattraKnit
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What if thinks went just a little different when Error fell? What if someone really loved him? What if he loved someone even with all his positive emotions stolen?
Classic Judgement - Sans Meets MHA by BurningWoodGaming
BurningWoodGaming
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Sans meets My Hero Academia! What more is there to it? I hope you enjoy! Warning: Self harm, Suicide attempt DISCONTINUED: The new one is out. It's called "Judgement of Karma - Sans Meets MHA"
Look Over The Horizon [Star Sanses x Reader] by Fandom_Trash2020
Fandom_Trash2020
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You always lived your life believing you were normal. The truth is, you were far from it. But with your history of amnesia and mysteriously forgetting your past and where you came from - you never really questioned it. So what happens when three skeletons turn up, claiming to be your childhood friends here to save you from a rising threat? Taster: You had expected to make it home safe and make a nice dinner for yourself, maybe even treat yourself with some (favourite dessert) later that night. What you weren't expecting was for a hand to come out of nowhere and grab you off the street, dragging you into a pitch black alleyway. Updates weekly! Copied over from my Quotev account: Fandom Trash
Show No Fear by Juniperlives43
Juniperlives43
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Aliza has created another reset only this time she isn't facing the horror house alone. He older sister has joined her, however her older sister doesn't seem to be able to show fear. What would happen when Sans meets her? How is she there? *Art and alternate Sanses or undertake universe I guess, belong to their rightful owners!*
Undertale x reader oneshots :discontinued  by ivy_wierdcorefreak
ivy_wierdcorefreak
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This book is really cringey because I wrote this when i was 12 so be prepared to be confused and see cringey stuff it will be edited to be better but I'm Not gonna edit it for a while.....yeah I lied I'm never touching this mistake ever again I warn you all not not read it but you still do please Bleach your eyes after you read this. Hi this is my first book this might be bad but I'm trying and very slow updates sorry for bad spelling because I'm half asleep and mostly my phone being a jerk And the readers or y/n does not have a gender they only have a gender to who ever reading this make sense
Justice (Ink!Sans x Reader) [COMPLETED] by the_pacifist
the_pacifist
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Heya! This book will be a bit of a slow burn, which means that all the ~romance stuff~ won't happen until a little later in the story. ~~~ Twenty year old (Y/N) has sworn her undying loyalty to none other than Nightmare, one of the most feared villains in the multiverse. She's been working with him for years, since she was seventeen, but she's never encountered the infamous Star Sanses. She wishes that she could meet them, she hopes that she'll be able to fight them some day and end their existence. Her ultimate goal is to impress her boss and to prove herself to everyone who told her that she wasn't good enough. Will her wish change when she encounters the Star Sanses? Completed 12/24/2021 ~~~ Pronouns used in this story are she/her Disclaimer: None of the art used belongs to me! If you see your art/know the person who made it, feel free to let me know so I can credit them :) *Cover art belongs to RyuuseiRissu on DeviantArt*
Nightmare Sans X Reader by Shadowy_NightTerror
Shadowy_NightTerror
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A story featuring a world with characters and places that I have made and from the fandom. The reader finds themself stuck in some unusual situations. A goopy monster from their nightmares might actually become more important in their life than they thought. The reader is around 20 years old and a late high school graduate. I use they/them pronouns for the reader in this story. {The cover photo was created by https://www.deviantart.com/lyoth737 so give them so love and affection}