Underfell Stories

1.2K Stories

Can I take you to Dinner? Mafi-fell!Sans x Reader.  [COMPLETED] by MissHoll-E-Socks
#1
Can I take you to Dinner? Mafi-fel...by MissHoll-E-Socks
"How rude, not even gonna ask for a name??" He teased. "Why are you here?" You glowered, raising the whisk. The skeleton scoffed: "Well, glad yo...
Completed
Six Skeletons, One Maid by RaccoonSinQueen
#2
Six Skeletons, One Maidby RaccoonSinQueen
Moved from AO3 because of reasons! "You are the only maid (or worker in general) that serves for the Skeletal Household. It's a skele-ton of work, but you manage by...
I am not cute (UF! Bitty Sans x reader) by crazywildernes
#3
I am not cute (UF! Bitty Sans x re...by Crazy Wild
This will be my first book so please no hate. I am trying to make the book for both genders so if I wrote something for a specific gender please tell me. If you dont lik...
You have become an Error (Discounted For Rewrite) by MikkiMausu
#4
You have become an Error (Discount...by MikkiMausu
(Discounted for a rewrite) A shy girl dies in her reality saving a kid from a speeding car founds herself trap in the anti void as a being called Error Sans the god of d...
I am the classic by KarmaAkabane425
#5
I am the classicby Karma Akabane
Somehow...I've become a sans...and not just any sans.. I'm classic!? What the flip is going on!? Wait why are different sans and papyrus's showing up at my home? I didn'...
Wilted [ Sans x Flowerfell! Reader ] by morrow-
#6
Wilted [ Sans x Flowerfell! Reader...by space sloth
You were afraid. For the first time in your life, you were truly afraid. You weren't afraid of the never-ending darkness that had now consumed you. You weren't afraid of...
Completed
Unfixable - HoneyMustard (Hiatus) by KillerAkuma
#7
Unfixable - HoneyMustard (Hiatus)by KillerAkuma
He was broken and had very little hope that he could be anything else. He was ready for it all to end, for it all to stop and not restart. He was ready to die... But s...
(Various)Sans and Papyrus X reader one shots by PhyKoha
#8
(Various)Sans and Papyrus X reader...by Citty
So uh, this is my first 'X reader' story thing that I've done so far so don't expect too much, ok? Anyway, I really do hope you enjoy this! (Requests are welcome) <3
The moment i saw you i loved you~(Sans x Fell) by LazySkeletonSans098
#9
The moment i saw you i loved you~(...by LazySkeletonSans098
Since Ink met Classic, he wanted Classic to meet every Sans he knew. And so he did meetings with a lot of Sanses....until one day, classic saw a Sans which some called h...
Sans Aus x Reader Oneshots (Infrequent Updates) by good_night51
#10
Sans Aus x Reader Oneshots (Infreq...by ᶜʰᵃʳˡᵒᵗᵗᵉ
If you can't tell what this is from the title idk what to tell you... I will do requests and they can be as detailed or as vague as you want. I will do OCs if you want. ...
Black Roses (Overprotective!Bad Guy Sans' x Child!Reader) by JulesRedenger
#11
Black Roses (Overprotective!Bad Gu...by JulesRedenger
Nightmare found a young child a long time ago. When they fell into a coma it sent him over the edge. several hundred years later the child wakes up in a castle of darkne...
Completed
Becoming Error, The Forced God Of Destruction by PinkieKidoCup
#12
Becoming Error, The Forced God Of...by PinkieKido Cup
What if someone is reborn as Error? What if they aren't so bad? What if they're suffering in silence and keeping their job a secret for fear of hate? How will Ink react...
The One Thing That They Care About (Sans AU x Reader x Papyrus AU) by voltimer
#13
The One Thing That They Care About...by 𝐜𝐡𝐫𝐨𝐧𝐨𝐬, 𝐭. 𝐯.
Y/n L/n. A special human with a special SOUL. Yes, her Soul Trait is something new. But other than her SOUL trait she has another secret. One day, while she was at the...
Completed
Truyện tranh Undertale (Vietsub) by -Ruby-Chan-
#14
Truyện tranh Undertale (Vietsub)by ♡ 26 ❤ 12 ♡
Tiếp tục bên nick @nhi26122004 nhé <3
Naturetale : reborn as lavender  by KarmaAkabane425
#15
Naturetale : reborn as lavender by Karma Akabane
(As far as I know, no one has made a story about naturetale like this so..and the only reason why I writing one like this is because of fatal error part 5? Or part 4, go...
My Two Masters (UF!Papyrus x Skeleton!Reader) by OreoDaSkeleton
#16
My Two Masters (UF!Papyrus x Skele...by ~Oreo~
Y/N's been traded and sold her entire life. She's learned firsthand that if you don't obey your master, you get hurt. If you force yourself to listen, you live another d...
Reborn as fellswap san and now I'm kinda blind!? by KarmaAkabane425
#17
Reborn as fellswap san and now I'm...by Karma Akabane
What if..someone from our world was reborn as fellswap sans? But an accident when he was young leads to becoming blind for a long time and papyrus feels guilty about not...
AU Sans X Reader One-shots by Little_Blue805
#18
AU Sans X Reader One-shotsby Blue
Completely female readers unless a request asks different. That's...really about it, enjoy!
Why Him? | Underfell Sans x Reader by ChLuKa
#19
Why Him? | Underfell Sans x Readerby schmoo
*WRITTEN IN 2016* "Can someone please just tell me.... Why him.....?" Confidence. That emotion has been coming to you a lot ever since you had met him... But...
An Oath of Mercy || UnderFell Sans x Reader by StrawberryMilkSnake
#20
An Oath of Mercy || UnderFell Sans...by Silver
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...
Completed