An Oath of Mercy || UnderFell Sans x Reader - Silver - Wattpad

An Oath of Mercy || UnderFell Sans x Reader

StrawberryMilkSnake

Reads 20,252
Votes 771
Parts 14
Time 2h 49m

Reads 20,252
Votes 771
Parts 14
Time 2h 49m

StrawberryMilkSnake

fellsans flowey monsters papyrus readerinsert sans sansxreader texttospeech underfell underground undertale undertaleau xreader

One clumsy moment and a broken leg are all it takes to leave you at the mercy of the very edgy and very hostile monsters of the underground. Thanks to your knowledge as a doctor (and oath to do no harm), you're able to convince the Great and Terrible Papyrus to keep you alive. But how are you going to find your way back to the surface with a bum leg and a short skeleton that doesn't seem to like you? | 

- UnderFell Sans x Human Reader 
- Enemies to lovers but Fell is the only one hating 
- Your leg privileges are revoked, and Fell needs to wash his mouth with soap 
- Flowey is an equippable companion and decides to help you cuz he actually gets something out of it 
- My own interpretation of UnderFell (tho from what I've seen it doesn't really have a narrative anyway)All Rights Reserved

fellsans flowey monsters papyrus readerinsert sans sansxreader texttospeech underfell underground undertale undertaleau xreader

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14 parts

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Bloodfall (An Undertale AU) by BlackStormWolf

Ever since the death of his younger brother. Things have gone downhill in the surface world for Sans. Alphys died a few months after Papyrus to a disease, Mettaton and Undyne, especially Undyne, had fallen into a depression. Flowey dissapeared into mt. Ebott, not to be found and Sans is fighting depression and insanity. One day, Sans discovers a suspect to his brother's death. A being that is trapping anyone who had either fallen into Mt. Ebott or stayed behind in snowdin for a while. Sans, along with Frisk and Undyne, go into the underground themselves to confront this being. They must encounter the Bloodfall that traps and kills anyone who dares pass by waterfall. (This takes place after a true pacifist run if one killed Sans in a Genocide run, but reset their game before getting to Asgore(I did this in a way to quit the Genocide route). This is if Frisk choses to do this the Pacifist way. I might make a Genocide one in Story Shorts. Also, My Sans is a human, but feel free to interprate him as a Skeleton if you ever choose to use this AU. Just credit me!)

Don't Forget [Sans x Female Reader] by GabrielXander

You would think that with how shit your luck is, you would've been dead day one since falling into the Underground filled with scary monsters and a few spooky skeletons. However, much to your surprise, that did not happen (yet). You know how you ended up here, but you don't know... HOW. You're actually in the GAME Undertale now. And to make matters worse, there are some people who KNOW. You're surviving the best you can, but things are only going to get weirder from here on out. Gaster apparently needs your help? You're using the DJ to go to different AU's? You are gay now?- Okay, maybe that last one is just a joke, but still! You can only hope that your instincts are enough to keep you alive in these trenches. On God, they tryin' to drown you in this hoe! {Available on Patreon, Quotev, and Ao3 under GabrielXander}

Soulbound || Sans x Reader by StrawberryMilkSnake

When a situation with a dying human ends up with you absorbing their soul, you panic (like any unprepared monster would). Suddenly Undyne is hunting you down, so you rope the mysterious skeleton next door into helping you. Which he does--in a very Sans way. And who knows? Maybe pretending to be his girl will pay off. | - Classic Sans x Monster Reader - Fake dating turns into real dating - One (1) very mysterious skeleton & one (1) very awkward reader - Papyrus is so sweet and innocent, I love him - Monsters really are in the wrong for killing children tho - I love happy endings and hate tension so expect an easy, relaxing read

Resets (Sans X Reader) by Memovie360

The humans sealed the monsters underground with a magic spell, after a long war many long ago and thats where they stayed until about a hundred years ago. The monsters had broken the barrier, and the humans were just beginning to get used to the new creatures roaming alongside them. This had caused havoc on your family, your parents hated you, and each other. It all troubled you, so you decided to end it. You stared at the hole leading to the underground, you closed your eyes and fell forward, but what happened next left you wondering, bewildered beyond compare. Now that you have the option to reset, your deciding if you should end everything, but you knew he'd remember. You knew it would phase him, but then you realize your not the only one with this power, and must stop them from misusing it. But will you be able to? Read to find out. (Cover created by me, story may contain a few slightly graphic scenes but anything erotic will not make its way into the storylines, minor tigger warning, suicidal theme IS inside this story, please continue reading, updates weekly, also READ THE PROLOGUE!!! It has background info that is relevant to the plot line)

Dropped (original 2015-2018) by Nacatu

Yowzers, I guess my writing had to start somewhere __________________________ It all started when your best friend was pulled down into the depths of the mountain. Only to lead you through a place that has closer ties with you than you'd ever thought possible, which forces you to uncover a dark power that has long been harboured inside you for far too long. Patiently, it waits for the balance to tip just enough in it's favour. If that happens, it will not hesitate to destroy those you care about most. . . [in the process of heavily editing] [WRITING GETS BETTER IN LATER CHAPTERS] STARTED: December 10, 2015 ENDED: September 22, 2018 ______________________________ Highest ranking in; Undertale : #11 Sans : #1 Sansxreader : #1 Flowey : #1 They/Them pronouns Written by M and Rain [[Overlord]]

Murder in the Alley [ Dusttale!Sans x Reader ] by morrow-

He killed them all. Dust, down the waters of the the forest it runs, through the veins of the skeletons and the demons that prowl the night. It's the silent enemy, the adversary that slowly chokes and brings down entire armies to their knees. None can oppose it for none have the will or the strength. And it is the dust that emerges from the mouth of a mountain that overlooks a city, the dust that creeps and crawls through the forest and down the alleyways. It is the dust that wraps its bony hands around the throats of the damned ignorant enough to walk the streets, squeezing until the last heartbeat thrums. You are a detective in this city, a quaint area with little crime and a police force hopped up on Dunkin Donuts. But when a string of murders plagues the town, you are thrown on the case following cold leads and an ominous trail of dust. But one night, when you catch wind of a scream and follow it through the dark, you find a skeleton and the rest is history.

New Purpose (US!Papyrus x Female!Reader) by OreoDaSkeleton

Y/N, meets a new coworker that changes her life forever. A monster, doing his best to make a living after moving out of the underground. Sans is this ecstatic, cheerful, absolutely innocent skeleton, smiling despite any given situation. However, Y/N finds out that Blue's wearing a different attitude outside of work. He's exhausted and working himself to the bone, using all he earns to pay for countless medical treatments and bills. He claims that they aren't for him, but keeps silent and won't give more details. Who's bills is Sans paying for and could Y/N find a way to help? **WARNING- Small Depressive episodes will be presented in this book. Read at your own consent.** Hello! It's Writer~San! None of the art/undertale au is mine, but the writing 100% is! Enjoy!!!

Is Red for Blood or Love? (Fell Sans x Reader) by Styla_Mythic

This is a female reader x fell sans. (Y/N) was a kind girl. She loved her family and her friends. One day something went wrong and she fell into the Underground from the top of Mt.Ebott. After a weird run in with a talking flower, a killer goat lady and other weird deadly monsters, she finds herself in one of her worst situations yet. But is this new monster really a foe?

The Real Me + You by KasiaKaliszka

You've been living in the Underground for the past 2 years as a powerful Spell Caster, you prefer living in the Underground than up top on the surface as you find Monsters to be better company but other Humans do pass through from time to time. Monsters can go up to the Surface but choose not too as Humans do not want them there and will attack them on sight but there are some curious Humans who will pass through the Underground and so to ease what ever discomfort they may have some Monsters can make themselves look Human. You the Reader didn't get to know all the Monsters, for the whole 2 years you just worked and relaxed at Waterfall until you met a certain Monster who changes your life and you change his.

My Little Mutt (FS!Papyrus x Female!Reader) by OreoDaSkeleton

Hi guys! First of all I should mention that the story pic isn't mine and of course Fellswap belongs to its original creator. A young hiker, Y/N gets lost and accidentally falls into a pit while stumbling in the dark. She wakes up to find herself in a whole new world that was never spoken of before except in children's stories. That's when she stumbles upon Barb (aka Mutt) and makes her first friend in the underground! But other monsters that live here aren't so welcoming.

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Bloodfall (An Undertale AU) cover

Don't Forget [Sans x Female Reader] cover

Soulbound || Sans x Reader cover

Resets (Sans X Reader) cover

Dropped (original 2015-2018) cover

Murder in the Alley [ Dusttale!Sans x Reader ] cover

New Purpose (US!Papyrus x Female!Reader) cover

Is Red for Blood or Love? (Fell Sans x Reader) cover

The Real Me + You cover

My Little Mutt (FS!Papyrus x Female!Reader) cover

Bloodfall (An Undertale AU)

Ever since the death of his younger brother. Things have gone downhill in the surface world for Sans. Alphys died a few months after Papyrus to a disease, Mettaton and Undyne, especially Undyne, had fallen into a depression. Flowey dissapeared into mt. Ebott, not to be found and Sans is fighting depression and insanity. One day, Sans discovers a suspect to his brother's death. A being that is trapping anyone who had either fallen into Mt. Ebott or stayed behind in snowdin for a while. Sans, along with Frisk and Undyne, go into the underground themselves to confront this being. They must encounter the Bloodfall that traps and kills anyone who dares pass by waterfall. (This takes place after a true pacifist run if one killed Sans in a Genocide run, but reset their game before getting to Asgore(I did this in a way to quit the Genocide route). This is if Frisk choses to do this the Pacifist way. I might make a Genocide one in Story Shorts. Also, My Sans is a human, but feel free to interprate him as a Skeleton if you ever choose to use this AU. Just credit me!)