Undertale
96 stories
Karmic Judge Rebooted by A_Toast1
A_Toast1
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The genocides never seemed to end, until they did. Something happened, something that threw Sans into another world where he must adapt. All while trying to stop a killer and save his family and friends. Here is the rewritten version of my first story. This fic contains swearwords, violence, blood, death, intrusive thoughts, murder/ attempted murder, If you are sensitive to this sort of thing then I recommend you proceed with caution. *I do not own Undertale or Bnha in any way. *The cover art is drawn by me.
The Skeletal Hero: Karmic Judge by A_Toast1
A_Toast1
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Complete! The player has just finished fighting sans and has left him to die. As sans turns to dust he sees a flash of light before everything goes black. He then wakes in a new world. Note: I don't own undertale bnha or the character in it nor do I own any of the art in this, this is just a fan fic that I decided to make.
Welcome to the Future  by SpiritWolfNura
SpiritWolfNura
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For 130+ years, monsters have been extinct with the only things left behind having been their hybrid children. Over the years as the hybrids continued to reproduce and 80% of the world's population went from human to superhuman. With the rise of superhumans came the rise of heroes and villains. AU High. Japan's #1 hero school. A place that produces Japan's finest heroes. A place that hides that last of monsterkind.
Humerous Temptations - DarkHumor (Nightmare x Classic) by Celestial_Keeper
Celestial_Keeper
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Life always has a way of keeping one on the path of their destiny. For Classic, he was lazy. He was often alone. He simply enjoyed his cozy life with few responsibilities. Yet the world found a way to tamper with that. A single incident offers changes that may give him what he's lacked for so long. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Cover was drawn by @MiMaidide
Remembrance - An Undertale Story-DISCONTNUED by MEJ2235
MEJ2235
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Long ago, two races ruled over the Earth. Humans and monsters. At least, that's the story we all know. There was another race. Technically, they were monsters. Skeleton monsters to be exact. Humans shunned them because they were monsters. Monsters shunned them because humans had skeletons. In retaliation, the skeletons split into two different races. The Surface Skeletons and the Abyss Skeletons. The Surface Skeletons reaches out to both monsters and humans. However, when the war started, they were some of the first monsters attacked and many were killed when they fought with the other monsters. Only a handful were sealed underground but without the Sun to strengthen their bones, the skeletons suffered until they received anonymous help. Very few survived to this point and slowly, they died out. The Royal Scientist at the time and his wife tried to have children. Each time left them severely weakened. Each child dusted until the wife gave up her life to bring a great skeleton into the world. That child is the last of his kind. The Abyss Skeletons shunned all other monsters and humans, considered them all demons. Their society was alike human society long ago. Divided. They believe they are strong and emotions only weaken. The class system was rigid and they possessed a kill or be killed attitude to all other monsters and humans. They thrived underground and ended up building their society in the Underground's own Abyss. It is a shame that only their leader can reclaim their heir from the corruption caused by those demons. Warning: Rated Mature for possible smut and probable gore. I'm sorry I don't know what I'm doing but this ain't for little kids. Also, cover doesn't belong to me. Credit to creator. Found it randomly when I searched up Undertale.
FurtherDown by THEANIMATEDFOX4
THEANIMATEDFOX4
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Was this truly the last RESET? Sans wondered. But he knew only Frisk would tell, only this young girl would decide his future. He hated the thought of it at first, but hatred began to grow numb after he figured out he had no say in his own future. He had to admit though, Frisk was pretty reasonable, it was Chara who was the maniac. But she was gone now, so what was the anticipating, eerie, feeling that he had in his bones? The feeling that something wasn't right, of course, this timeline was already incredibly strange. The feeling sat in his in the pit of his stomach, tying itself into knots, until that fateful rainy day when all of his questions would be answered. So basically, this is a fanfiction of a fancomic of the game Undertale. Look, I'm gonna admit, I'm little stuck in the Undertale fandom, so this is my of slowly crawling out of it. Anywho, I strongly suggest you read the fancomic which this fanfiction is based off of, DeeperDown, before reading my story. Here, I'll give you a link. http://gettingdeeperdownwithundertale.blogspot.com/ Anyway, enjoy the story, it took me about 11 months to write, so please consider enjoying it, seriously. - Ya Boi, Fox
Haremtale || Classic Sans x AUs || by Banaanaa_Miilk
Banaanaa_Miilk
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Classic Sans incidentally finds himself working as a maid for eleven different skeletons in a mansion, after accidentally breaking a statue worth millions of dollars. What he doesn't yet realize is that all these skeletons begin to quickly crush on him, and some of them don't like to share. || Reverse-harem where eleven AU Sanses are crushing on Classic! || ***Artwork is not by me!!
He Came to Stay (Blue x Bad Guys) by EmberAshTheFaithful
EmberAshTheFaithful
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Living on a steady diet of caffeine, sugar, and sheer will is not a healthy lifestyle. But how else can you keep up with teammates that need no sleep, no food, and who expect the same of you? Blue has no intention of falling behind, ever, for any reason. But his lifestyle is starting to show to others. What happens when the enemy intervenes for good?
You're a Dad Now; Deal With it. by Clichely
Clichely
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Nim didn't expect her children to go berserk. Blue also did not expect it, especially since he didn't know he had children in the first place. This is all Ink's fault. I own none of these characters.
Sans-sational Venture in Tensura  by DontAskImN0body
DontAskImN0body
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Sans was sick of the endless resets that haunt his world, knowing full well that is the player's fault. As repeating cycle continues something odd happens at yet another genocide run. He died yet he ended up somewhere quite odd.. Its not Snowdin nor anything in the entire Undertale but it was a whole different world known as Tensura.. Welp new story I guess. Be aware typos are probably littered everywhere and English is not my first language so be my grammar isn't that good. This was requested, although I can't find the usernames of those two who requested this. Although I already had this idea in mind. In addition I'm quite unsure if I'm going to finish this story or not. Oh, and yeah very very slow updates btw.