Undyne Stories

Abandoned on Mt. Ebott at the tender age of five, young Harry's unsurprisingly died, but Death's always had a weird relationship with his variant... Meanwhile, before Flowey's revival as souless talking flower, Sans makes a discovery under the mound of snow, Papyrus has always wanted to be a big brother anyways. *Edited Summary (29/09/2025)

Underfell is a dark world with the major rule of kill or be killed. Even though children are suppose to be secluded from this rule, that doesn't stop monsters from hurting children. Undyne is a monster who lives in Waterfall. Under the care of Gerson. One day while out on a walk the fish monster stumbles across a baby. Though it wasn't any monster. It was a small little baby skeleton. (the cover is only temporary, until I'm able to make a cover for the story)

How many resets has it been? How much suffering have you caused? Is it worth it anymore? They finally made it to the Surface. Everyone was supposed to be happy, but when Sans is found unable to wake up the heavy truth settles. He had Fallen Down. Papyrus can't imagine why. He can't lose Sans! So he goes in search of answers, only to find more than he ever bargained for.

Nautilus wasn't like your day to day normal monster. No, he was something else entirely. He was a monster that wasn't made of magic, he was a monster that could bleed and laughed about it. He had lived thousands of years alongside the King and Queen of Monsters, he had fought in the ancient Human-Monster War. And through it all, he smiled. No matter how grim the circumstances or how bad of a situation he's in... He always smiled. ~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~-~- (Thumbnail art by me.)

A new life begins for you and your little sister, Neelam. That new neighbourhood is the chance you need to erase the past mistakes and those terrifying fifteen years you passed in a foster family. You are not the only one who's running away from the past. Your neighbour, Sans, affected by a strange illness that's causing him memory loss, is worrying you. At nightime, he's wandering in the streets, lost, like he is chasing after old demons. His brother, Papyrus, can't look after him for the moment. Since you are in desperate need of a job, he's asking you to do that for him. You know it is not an easy job, but how complicated can that be when Sans is all but cooperative?

Lance lived his normal life, battling monsters, annoying clay, life was perfect. But he made a mistake that changed his life. Now he's in another dimension, has a crazy do-it-over power, and has to battle one of his friends. THIS IS AN UNDERTALE CROSSOVER (or killer tale crossover), since someone had to do it. This my first book/au so hope you all like it!

???: I want a fresh start and you seem like the perfect specimen to use for this story, Y/n L/n. (So in short the first story of this still happened but ???(me) Erased the memories of it happening making it all happen again I hope you guys enjoy this story till next time.)

One day, Y/N was playing Undertale. Y/N finished the game, both genocide and pacifist. After the second pacifist ending, you wondered how life would be like IF the monsters actually were real. If the monsters would actually roam around and act as humans. That thought soon changed. ( Book Cover Picture is NOT Mine. I found it on google. Credits to the owner. )

4 years after monsters came about Ebbot (Y/N) was friends with the Dreemurr children. Being the master dancer that she is can gather her magic to do amazing things. Having been through a lot in the short 19 years of life. She finally meets a handsome monster who knows her big brother and who understands what she goes through. What will happen between these two?

⚠Mild Swearing Is Included In This Work⚠ Watch as I attempt to write a fanfic for the first time in my still-rather-short life Loosely based on TedEd's Think Like A Coder series Also includes Deltarune, OMORI and Bunny Graveyard references, though I (hopefully) designed this story so that it can be enjoyed without any knowledge of the above fandoms. All digital images made by Gemini

Throughout all the humans to fall down, all the souls to shatter, and every reset, there is a memory. Where reality meets void, and fragments of memory are joined by seams of darkness, there is a presence. Years spent on the surface dull such things, reducing them to faint whispers in the deepest reaches of the mind - to vague terrors in the night. But a jump too far begins the unraveling, and the cracks that form are not so easily fixed. As the cycle resumes, the veil tears, and the presence grows stronger. Just how many cracks can a SOUL hold before it breaks?

Undertale has gone to Freddy Fazbear's pizza. Only to learn that their once kind and loving frisk has turned into a being of pure hatred. Will the undertale gang be ready to face an old friend or will they be forgotten there just like someone else we know.

Y/N is an avid fan of Undertale. She has multiple plushies and props, but when there is a new update for Undertale, her whole life might get better. ANY ART IS NOT MINE Undertale belongs to Toby Fox Music is not mine Story Cover:https://www.deviantart.com/nalulivesforever/art/Sans-in-love-625494317

When seven humans (+ one dead kid) fall at once, what could go wrong? Undertale, Frisk, Chara, and the six human SOULs belong to Toby Fox. Grouptale was made by Pavizi. Six human SOULs designs are mine! (Art by me!)

It has been five years since monsterkind left Mount Ebott with the help of Frisk. Now a teenager, that's six months they had been living far from their people with Toriel, who got hired as the first teacher for humans and monsters. Frisk lives that forced exile badly, but summer vacations are close enough to go back to New New Home and see all those they left behind. Soon enough, Frisk realizes something is wrong with Sans. Despite the forced smiles, the skeleton is suffering in silence. Worried, Frisk decides to investigate. Is he still mad for all these timelines they did something irredeemable, or is it something deeper? One thing is for sure, those vacations won't be like the others.

『 Sans is a powerful and infamous businessman, who owns UnderNet. Frisk is an ambitious vlogger who struggles for stardom. In a world which social media occupies an irreplaceable yet weird role in daily life and the economy of both the Highlands and the Underground, will their complex relationship grow? Or will it be buried deep in 'forgotten maybes'? 』 Updating Every Wednesday!

Join Sans and Papyrus in their journey as they go through different events and challenges. Please do support the story. Give it a like, and maybe a comment of what you think of the story. Thanks for reading!

Your favorite skeleton is back at it again... and again... agagaagaag Sans has had enough. Everyone is at the surface, holding their own jobs and lives. But... Sans can't ever let it fade from his mind. The dust. The cries. Watching the screen with Alphys as a child just rampaged in the underground. He is going to snap. He is mad. He is sad. He can never forget. Cover is NOT mine, find it online if you want ::Rights for the original concept and media 'Undertale' are all under the jurisdiction of Toby Fox. All other workings are done by me.::

You are an experiment. Made from stars and dust. You can control magic. You are 16 years old. You were determined to search about rumors of Mt. Ebott. You going in into the cave and you fall. You are really Determined.. *ST☆RT* (Covers made by myself)