Sans Stories

In this AU, Undertale monsters live amongst humans in the One Punch Man verse. How will it all play out? (THIS IS DIFFERENT THAN PUNCHTALE!!!) As an AU, characters may differ from their canon counterparts.

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)

[Cover belongs to me] Error is the (forced) god of destruction, Ink is the god of creation. Both are needed to keep the balance, but while one is loved the other is hated. Ink together with the judges elaborated a plan to finally stop Error. A deadly trap. Impossible to escape even for the feared destroyer. But someone is not following the plan. Things get out of control. Error gets out of control. Although things don't go exactly as planed, and the results are more chaotic than they should. It still worked. Error was finally gone. Lost into the VOID, scattering across time and space. But someone had their eyes on the broken destroyer for a long time, and they were waiting for this moment. Now they can finally act. And take care of their chosen child. ... Error woke up at the sound of his own crying. What? What's this sound? Why can't he speak? Wait, where is he? Why can't he get up? ...Uh? Why is he... so small? ...what happened to him? _________________________________ - Error!Sans is a variant of the character Sans from the game Undertale. Error!Sans was created by LoverofPiggies aka CrayonQueen - This story is inspired by 'Healing what has been broken' by harrish6. Although it happens in a different way, Error will still fall into the VOID. But instead of just falling into a different Multiverse something else happens. - fgod Error concept belongs to @harrish6 - Undertale belongs to Toby Fox Mar 10, 2020

Stuck in between wrong and right who will you choose? The man that stole your heart or the man who claims he'll jump off a cliff for you. All you want to do is be happy but what if that means some will suffer? Paige has a long journey and she's more than determined to finish. So this is my first story and I love Undertale... I get really confused with the x reader so I'm doing x protagonist. The protagonist can be you if you want but it's a girl so... The "fallen child" is name Paige because that's a pretty chill name if you ask me. I don't own any of Undertale period . Undertale is all Toby Fox none of me. I guess you could say what I write is how I would've handled undertale if I'm in frisk position. Oh and speaking of Frisk this is sorta an Alternate Universe. So Paige is the seventh and final soul. If people actually read this I'll write more. P.S. There may be errors but if you get confused somewhere please comment. Also please don't be a hater. Sooooo... UNDERTALE FANDOM UNITE!!!!!! oh Ya I'm kinda weird but aren't we all? -_- Also, I recommend that you play Undertale before you read this I DID NOT DRAW THIS PICTURE.

Miscode and his friends adventures.

(Art by @zuttoyonoturn69, can be found in X) Disclaimer: English isn't my first language, the protagonist is British, I'm sorry💀💀💀 Levi is a man who transmigrated into the body of Dust Sans variant, but with only LV 5. Now he has to figure out how to survive a murderous child who may or may not be possessed by Chara, or dude with far too much free time, and possibly even skeletons from other worlds.

Reboot storyline of Blue archive paradoxical timeline. Credit: Writer/Main idea: Me Plot making: Me This is my take of Blue archive X Undertale but rebooted Including Real Blue archive Characters and Undertale AUS Characters: Call of the void sans Normal Sans(Genocide run) Sudden change sans If there is any question, please ask me Inspired by Blue archive Dream in the desert is by Dazero and Hydna AOHARUTALE: Personality DIVISION by Hydna Blue archive: Visitor from the Underground is by Dazero Aoharutale by AAA782 Call of the void sans by Saster/ J-BUG/ Placek Sudden change sans by Leo/Spouting Blue archive Aoharu trio by Seriyan/ T_Squared_1211 Undertale by Toby fox Blue archive by Nexon. ⚠️Warning: you are reading a AI generated book. Please enter with caution. I only use AI to support my writing, all the plot design is by the author.

The skeleton shakes his head slightly, a boney hand sliding across his skull. "Ah- well- that wasn't free Doll, 'course you'll have to pay me for that..." He trails off, his cocky smirk ever present on his face as he looks you up and down for a mere second, "...little favor." He pinches his pointer finger and thumb together before rubbing them together. _____________________________________ (Y/N) is a bartender that was kept secret from the after hours patrons at the bar she worked at for two years. Her boss not wanting her to associate with the people that would further pull her into a world that she was scratching the surface of just by working there. But after staying just a few minutes later then she was supposed to she stands face to face with a gold toothed smartass with a devilish smirk- his red eyes trained on her every move. ______________________________________ There is cussing but let's be honest- there's cussing everywhere. Also posted on AO3 as clubofsnakes where additional chapters later on will appear there and not here. I was inspired by- @MissHoll-E-Socks with their story "Can I take you to dinner?" NONE of the art is mine.

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.::

Why did they think it would be that easy? They had no family, no friends, no money, no home. Everything lead them to it, yet instead of heaven or hell. They find themselves reborn as the Parasite that took over Nightmare's body. Surrounded by bodies, in front of the statue, with a text box asking if they wanted to kill Nightmare or not to fully take over. Of course they're going to choose no, they just woke up here with no one and nothing. Why kill off the only one here who can still talk? Follow the weird story of Nightmare and Night, as they try to live with the other. As one follows to do whatever they want, and the other goes along for the ride.

There's only one rule for those capable of AU hopping: never bring a real person into the Undertale multiverse. But, like all rules, it was destined to be broken. | - Error Sans x Female Reader - Young Error - take places not long after he becomes Error - so he mimics his canon version more closely at the start before molding into my fanon version with experience - This intentionally doesn't follow the exact plot of Aftertale either - Achingly slow burn - I abuse Y/n more than necessary (oops) and Error is toxic pre-character development. This isn't meant to portray a perfectly healthy relationship, but show that perhaps even the worst person can change - The friendship dynamic is: bffs that insult each other for fun (while not meaning a word of it) & I include a lot of what's deemed 'filler' content b/w Y/n & Error (y'all just 'hanging out') bc there has to be a solid foundation for Error of all people to care about someone else - Expect a heaping helping of banter 👍 (I couldn't help myself)

Cover image made by me. Someone meets their end too soon and meets someone who gives them another chance to live a more fulfilling life. One that they would enjoy despite the problems that may come along. In other words, reader becomes Error.

You were just walking home. A tear in reality split open underneath your feet and suddenly you were falling. Falling Falling Then you fell up and onto the tiled floor of a basement lab. Now all of a sudden you're in another world and surrounded by 6 strange skeletons (plus one's brother). Being terrified of all things horror and monsters, what are you to do? *Will contain mature themes but no smut*

Join Frisk, Chara, Asriel, and their younger sister, Aria, as they share many happy moments together! 11 months after Frisk's most recent True Pacifist Run, they, Chara, and of course Goatbro himself (AKA Asriel Dreemurr) receive a wonderful surprise in their new sister, Aria. Eight years have passed since then, and the four children are having all sorts of fun with each other! Comment if you like the story, or if you have an idea of what you'd like to see the Dreemurr family get into! Disclaimer: I do not own the game "Undertale," or the characters that appear in the game. Aria is my OC, and is not an actual game character. Note: Updates may be irregular, due to the fact that I have no set schedule. Also, I may edit chapters that have already been published, so you aren't alarmed when a chapter changes.

This story takes place after the events of the pacifist ending of Undertale, where all the monsters have already left the underground. However, that won't stop problems from starting again; Frisk and his friends will have to face a new threat. DISCLAIMER: This story is based on the fact that the first human fell underground in 2015 and the last in 2060. Here, Deltarune is a sequel to Undertale; therefore, Posttale is not a copy of TobyFox's creation, but an adaptation, or what is also called an "AU." Because of this, there will be things that are different from canon and adapted to my personal preference, with no intention of disrespecting anyone; for example, the gender of the humans: Kris: M Chara: F Frisk: M Don't like it? You can leave. Understood? Great. Contributors: @Fwrevy #Deltapad • Undertale and Deltarune are property of Toby Fox. • Images used in the story are property of their respective owners or made with AI. *#27 in the "Undertale" category 6/13/2026* *#3 in the "Deltarune" category 3/3/2026*

After escaping the Underground and getting clipped by a truck, an amnesiac Sans ends up in the home of a vet, a doctor, and their daughter. He's certainly nothing they've ever seen before, but they can't just let him suffer either, so he becomes the unlikely son. So when Frisk falls into the Underground, Sans must return home to the place he was born and raised. Can he and Frisk free monsterkind from the mountain, or will they make a home Underground with the family Sans lost long ago?

Ever since the Anthros' arrival to settle in and make lives for themselves among the Monsters, Newer Home slowly continued welcoming new Anthro faces. A couple being new faces, though many would be family members reuniting with one another at long last. Some more so for the better than others. Many Anthro families have yet to be made whole again, while the reunion of families proves to only prompt more questions to these family mysteries. Mysteries both of family members who have found each other, and mysteries around lost and missing family links-and all are mysteries the Anthros are willing to uncover.

Hi! This is a story of what I personally headcanon Sans and Papyrus' childhood was like.(The cover is from the middle of the story, when Papyrus is 11, and Sans although he doesn't look like it, is 17)

Working at a luxury hotel has its advantages- the pay, discounts, seeing celebrities. It's not all sunshine and rainbows, but you enjoy it! As someone who overanalyzes things and processes things different then most normal people, you find the mind numbness of the job very relaxing. Not too exciting, not too boring, just nice and simple. Unfortunately, you're really good at your job. And that causes you to accidentally overhear some intel- causing you to be kidnapped and sold at auction. What happens when a perfectly composed and professional monster loses his rational thinking in her presence? What happens when they come together to stop forces beyond their control- beyond their power? _________ Art doesn't belong to me.

(This au along with the characters appearance's in this au is created by me) [Frisk decides to end their run very differently than how they usually do..though when they left the underground..the story didn't reset and the player didn't follow their every move anymore...now with no player, the universe decided to change drastically...changing the characters looks, backstories, and memories..this change was made to fit the new upcoming player..though..despite everyone else changing along with their memories...there was one who still remembered the original universe..] (The year for Undertale is uncertain and there's people that say it takes place in 2090- but that is a lil too far- so I chose 2024 for the year of this story)