Undertale & Creepypasta (Has mature content)
27 stories
error's réincarnation (fgod)  by sans-from-undersing
sans-from-undersing
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    Parts 21
After ink cheated on him, the gang and the chara admit hating him and wanting him dead, error decide to end it all. He jump in the void but instead of dying he fall into a new multiverse where he will be able to heal and find true love
Promise me, You'll never leave me (A Fgod  X Mcyt story) by AlterCreep
AlterCreep
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    Parts 20
I suck at writing description.
[You're Not Alone] Underverse Cross Sans X Reader by Kim__chan
Kim__chan
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    Parts 48
You were a kind human who has a brother named Frisk. You and Frisk always get along until both of you climbed up a mountain. very curious if the legend was true or not. "(Y/N)!! Help!!" You looked towards where Frisk was. He fell into a hole as you jumped in to help him. Both of you landed on the ground with flowers catching your fall. Both of you were in pain as both of you heard foot steps. "A-Are you okay?"
What is love? (Flowerfell Sans X reader) by despairedhope
despairedhope
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Y/N loved taking photographs but one day she disobeyed her parents golden rule. The golden rule was to never climb to the top of Mt.Ebott. When she reaches the top she climbs up a tree, she then slips and falls down a hole. Will Y/N get back to the surface or will she be killed? ~I do not own flowerfell or the cover~
Determination's Punishment by Wendy-ChanX777
Wendy-ChanX777
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    Parts 11
--------------------------- Yo!! This is basically a crossover of Undertale and Bnha that features Frisk! If you don't like it, either don't read it or give me criticism. I ask that you keep in mind that I made this out of fun and boredom. It's the first time I'm writing something like this and I don't expect anything from this. ---------------------------
Chaotic Corruption ( a bittybones x Ultima!reader ) by Kitty_AnimationZ
Kitty_AnimationZ
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    Parts 6
Y/N is an Ultima but she is also a soul mix. A soul mix is when two soul types combine and become one being. She is a mix of CHAOS and CORRUPTION. The strongest soul types other than Determination and Fear. Y/N was used as a weapon in a war. The Children's war to be exact. She has become emotionally drained since then. She hopes that the bitties will help her become more emotionally active. And they do...
The Chosen One To Fall [A Kustard Fanfiction] by QuxxnFlixx
QuxxnFlixx
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Inspired By My Favourite AU, Flowerfell. Over a few hundred RESETS later, one of the RESETS had gone wrong and had Undertale Sans appear in Underfell. However, everytime Underfell Frisk RESETS from dying, a flower appears on Undertale Sans. Undertale Sans then meets Underfell Sans, who at first wanted to kill him, but then realises the flowers that appeared everytime Frisk RESETS. He spares him, and took care of him. As time goes on, he fells in love with him. But, he knows that Undertale Sans can't live for long...
Sometimes kindness is enough by lauraarualC
lauraarualC
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    Parts 36
Sans was quite happy with his life : he was living on the surface, he didn't go through genocide routes, had a caring brother, good friends, no resets. Yes, he would have never changed his life for anything in the world. Then how did this happen? Kustard in the flowerfell universe! Warning : contains violence, violent deaths, violent languages, violent gestures, swearing and some smutty elements !
Kustard Soul Mates (in writing process) by Yuki_TheDarkWolf
Yuki_TheDarkWolf
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    Parts 9
sOoo I've had this idea where they have soul mates. Like everyone is born with a half heart necklace. Every time the person gets near their soul mate it will heat up as they go farther away it gets colder. EEE I couldn't decide wether I wanted this to be errorfresh or kustard so not many people like errorfresh so it's kustard ;-;
The dream sibling (undertale au x reader) by Marshipop
Marshipop
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    Parts 30
Y/N is a normal girl, exept her soul has two sides the soul of dreams and hopes and the soul of hate and fears, which makes her unstable as a person. She has two brothers Nightmare!sans and Dream!sans, she loves both of them very much. Her life was happy, until...