Undertale/Undertale AUs
8 stories
Belle of the Night (Nightmare Sans x Fem Reader) by PandatheSeahorse111
PandatheSeahorse111
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Based off of Beauty and the Beast. You are living a quiet life when you are forced to flee into a forest to escape a forced marriage. While running, you stumble across a certain someone's castle... Howdy, my darlings! This is Editor Valery. This book was originally written on Quotev. It'd be appreciated if you checked out this book there too! There is a sequel. It'll take me a while to put it on here, so feel free to read the sequel on Quotev whenever. This book was first started in 2019, so the Author Notes from my sister will be old. She doesn't want to change anything, so I'll be the one moving everything here! The Editor Notes will change a bit cause I don't like my notes anymore- Anyway, enough of that. This is a Fem Reader story, so enjoy that. You're all beautiful and amazing and I love you all! Enjoy the book! Mwah!
Blood and Betrayal (Yandere Shattered Dream x Fem Reader) by PandatheSeahorse111
PandatheSeahorse111
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Sequel to Belle of the Night. Five years after your marriage, you are living in the castle with Nightmare and the others. Everything was perfect until Dream became obsessed. Hi, again. Editor Val here. This is a sequel. Belle of the Night is the first book, it's based off of Beauty and the Beast. Please read it first! Thanks! Anyway, these books were first written and published on Quotev, so feel free to read it there if you don't want to wait a few weeks for me to put the whole book on here. Enjoy! Mwah!
Darkness Is Nicer Than It Seems (Nightmare Sans x Reader) by Lollipopswirl99
Lollipopswirl99
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(Y/N) had a regular life. A normal job, home, everything. Sure she had her own problems like insomnia, nightmares, and no friends but that wasn't anything to special. Though all of that would change when she finally decides to go over to that very special Gold and Dark tree.
Black and White     (Nightmare x reader????)  by xAnonymousweeb
xAnonymousweeb
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Y/N lives in a world of 2 brothers. Long ago, they were protectors of a tree, one that held both positive and negative energies. Dream, and Nightmare. Dream protected the positive emotions, whilst Nightmare protected the negative ones. These were in the form of light golden apples, and rough looking black ones. Dream was liked and cherished around the kingdom, while Nightmare was often injured by ignorance within the subjects. One day Nightmare got sick of it. He ate a apple. He destroyed everything. Dream and a few allies managed to escape and start their own kingdom. now there are 2 kingdoms. Nightmare's, And Dream's. And this my friends, is where our story begins. I want to give a big shout out to @childofbears for letting me use their unfinished idea! Thank u so much! So thanks for the adoption! The original title was "A Tainted Love" if you wanna check out the original. Y/N = your name. This is also aimed toward a female audience. I would've done they/them, but I was already 5 chapters in, and I didn't feel like changing it. Cover art is not mine, I will make some when I get the chance. This is also an empire verse story.
-The Forest's Girl- by pastelmelonm
pastelmelonm
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(Finished!) Anyways here's the plot (Grammar is also junky) This is a nightmare sans X Fem! Reader Just to clarify, I drew '(Y/n)' in the way I imagined her to sorta look like. She does not actually look like that it's just me. You're a girl (just roll with it) who is 22 years old and you have earthly powers, (more will be explained about the powers) Your father wanted a boy instead of you and he left your mother when you were born. Chasing after another woman your father was no where in sight. Your mom found out later that he was murdered by his new wife for his money and there your mother was left a widow to care for her only daughter. At 10 she died and instead of going to an orphanage, you took care and lived in your mothers small cabin deep in the forest with a small garden of course. You always heard of the guardians who guarded the tree of feelings and for the townspeople they always spoke harshly about the one they call Nightmare. Rather Dream, he was worshipped and praised for protecting good and positive feelings. And Nightmare protected the negative ones which of course they did not want. You on the other hand saw that without sadness and loss the world would be out of balance. So you always thought of Nightmare as misunderstood. And owning a small flower shop in the town you made two baskets full of sweets, flowers, and bread, thinking of how it would be a nice thank you gift for the two guardians who protected their respectable feelings. But what you didn't know was with that simple gesture of kindness, a certain skeleton became very interested in you. This book will have you wear dresses and nightmare will of course wear clothing suitable close to the Middle Ages, so basically it's kinda like back then. There are most likely going to be errors in the grammar so please excuse them (Artwork by me) I hope you enjoy this! (Also please keep in mind that I will most likely draw the outfits + maybe some parts of the book)
I Want To Forget (Killer Sans x Reader) by OreoDaSkeleton
OreoDaSkeleton
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Want to talk about falling into the wrong place at the wrong time? Y/N definitely scored big time on that one. One moment she's falling, the next she finds herself trapped underground with a monster that wiped out his own kind. He's a cold-blooded killer that never shows any emotion. Though, as time passes, she finds out that Sans isn't as heartless as he plays himself to be. Hello! Writer~San here! Cover art and Undertale AU/Characters aren't mine, but the story definitely is. I hope you enjoy it!!!!
Void [Nightmare X Reader] by LotusdeCeniza
LotusdeCeniza
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Y/N is the Guardian of nothingness. The shrub with flowers that she protects is home to all things that are considered to be nothing. When a walk in the woods allows her to make a new friend,a problem arises from the shadows. As Y/N tries to find balance between the protecting her plant and Nightmare a margin of error disrupts peace between feelings. Destruction and despair have plaguaged her once beautiful home because of this. How will Y/n help revert things to how they once were before. Slow burnish, on going nightmare x reader Not edited, cause most of this is written on the fly. Update monthly cause uninspired and school. Highest rankings: #1 dreamtale #1 Negativity #1 nightmarex reader #1 Sansxreader #1 nothing #1 passive #1 balance #1 Nightmare #1sans