My new pet Swapfell! Sans x Reader

Reads 262,257
Votes 5,794
Parts 53
Time 2h 34m

Reads 262,257
Votes 5,794
Parts 53
Time 2h 34m

Mature

You fallen into the underground, lost, confused...and no memories, what will happen to you when you encounter monsters that want your soul?


Swapfell! Sans x readerAll Rights Reserved

reader sans swapfell undertale

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53 parts

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Ha, Ha, Nice Try. (Discontinued) by NoticeMe_Senpai3533

UF. Papyrus X Reader Broken and Bloody you arrived in the underground.............. It's pretty much the same, expect something I have yet to figure out. Yeah. Read I guess. (My first undertale fanfic to sorry ahead of time for suckiness.)

Human Again ~ Undertale ~ SansxReader {COMPLETED} by fantafrisk

{THERE IS LEMON BUT READING IT IS OPTIONAL AND WONT AFFECT THE STORY} You've aspired to be a Monster specialist ever since the monsters had left the Underground. You leave on your first expedition to find as much information on each Monster as you could but then you're sidetracked when you wander into a cave, where the barrier once stood, though you didn't know it and helplessly wander into the Underground and meet a strange skeleton who really sparks your interest.

Casinotale Sans x Reader The year 201X, You weren't much of a social girl and you knew that. But your friends you did have however wanted to change that...So they brought you to Undertale casino and resort, a booming place after the Monsters were released from the Mt.Ebott. But what happens when things go south? Why don't you come in and find out?

a glitch in the system error sans x reader (Complete) by Nettislettus

error x reader. you fell in hole, but not the underground. Found something special about your self and others. Keep reading to find more.

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

An Oath of Mercy || UnderFell Sans x Reader by StrawberryMilkSnake

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)

the monsters are free and on the surface, frisk split her soul so chara can live

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?

You Can Never Go Home by Minifighter1009

Your world. No. Your universe was about to be destroyed. As much as you didn't want to leave, you couldn't let him take over. So you did the only thing you could think of. You activated an ancient spell which prevents him from ever coming back to your universe. The bad thing? You can't go back to your universe either. Suddenly you awake in snow and find yourself trapped Underground, a place inhabited by kind monsters, skeleton brothers, and a young kid who can reset time. As you grapple with your new reality, you realize he is here too, endangering the beings you have grown fond of. Now, in this unfamiliar world, you must confront the consequences of your actions. Can you protect your newfound companions from the coming shadows or will they fall victim to the evil you inadvertently unleashed?

(Gender neutral reader x sans aus) You're just taking a walk one day, when you come across a huge hole in the ground. It would be weird if you tripped and fell in and met a bunch of skeletons or something...

Ha, Ha, Nice Try. (Discontinued)

UF. Papyrus X Reader Broken and Bloody you arrived in the underground.............. It's pretty much the same, expect something I have yet to figure out. Yeah. Read I guess. (My first undertale fanfic to sorry ahead of time for suckiness.)

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