Undertale/Sans Au's
31 stories
Into The Underverse by UndertaleFanatic981
UndertaleFanatic981
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Y/N wasn't anyone special. With 21 years under her belt, she went through life like anyone else. Until she was picked out from the rest. Read your way through the Underverse as Y/N gets into the worst of situations. Can she herself survive whilst also keeping those she deems her friends safe?
Reborn as Dream Sans [Undertale Multiverse] by DeadEnDead
DeadEnDead
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Reborn as the guardian of positivity, you find yourself in a strange new world, uncertain of what it may hold. Navigating it isn't easy with gods like Nightmare and Error trying to strike you down every step of the way. But unlike the previous Dream, you have nothing to lose, and are determined to forge a better path than the soul whom you have replaced.
Little Soul Destroyer by WintxrCherryX
WintxrCherryX
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Holding up the seal, The AUs who was so against Error couldn't help but feel relieved. They had finally done it- they had sealed the destroyer away! Now the Multiverse can finally be at peace! Or so, they had believed. Without a Destroyer, the Multiverse was doomed. The one in charge of the Multiverse, Fate, knew this. She was panicking, as all their hard work would soon crumble to nothing but ashes and deleted codes. She needed to create a temporary solution, however, they've meddled with the Multiverse enough. So with the last magic they could exert to the Multiverse, Fate then brought their hand down and got to work. A SOUL was split An Original, one that was made to never have a copy, was split into two, making another one of itself. A tale twisted beyond recognition, it's story turning into one of it's own. The AU couldn't be called the same anymore. All of this, because of one little mistake that Ink had made. †•❅───✧❅✦❅✧───❅•† Adopted Idea from Firehedgehog's Idea Factory! Combining 'Let me eat you!' And 'A tiny destroyer' ideas Temporary Cover, Cover is editted and not mine This is a rewrite of 'Little Soul Destroyer' so if you have read the original, congrats, you know the basics ((TRIGGER WARNINGS!! • Blood and Gore Warning • Major Character Death • Angst • Ink • Sensitive Topics that will be mentioned • SOUL eating • Heavy cussing))
My Guardian Nightmare by WintxrCherryX
WintxrCherryX
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There was a rumored cult that has always been circulating around town, giving offerings to a demonic entity as to worship him and avoid hell from being unleashed unto the town for many centuries. Yet all of them, so far, has made the Demon either angry or annoyed, a bit of satisfaction being the most they could get. However though, this year, a young child, who has been treated terribly by all but family gave the only thing they have besides his clothes and a colorful pillow that he had grew up with. Ever since that child has given his precious items as an offering to the eldritch abomination, however, his life has gradually began to change, for the better for the worse, Error couldn't tell. All the child cared about, was his family, and the Guardian that has began to protect him. Although said Guardian looks like a goopy tar stained horror that you'd see only in Lovecraftian horror or your nightmares, Error couldn't care, for he had a nice Guardian despite it's awful looks! After all, you should never judge a book by it's over.
His Will To SAVE by WintxrCherryX
WintxrCherryX
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(Each chapter has over 15k words, so even if the book is short, the contents inside aren't!) It was over, all over. Geno was dead, his brother had moved away with Decans to avoid the decline in his mother's health thanks to the alcohol. Error didn't know what to do anymore. But when a fire started and the only thing he was able to do left was hope, time rewound and he found himself back to a time when Geno was alive, and his family back together again, as if all of the things he experienced was a nightmare. But no, it was thanks to the RESET button that he was able to turn back the time. Now with such power, no one will be stopping him from his will to SAVE Geno, even if it costs him his sanity or his life with the ever looping timelines. !!Momma CQ AU!! !!Trigger warnings!! - Character Death, multiple times - Canon typical violence - Mentions of Self Harm Fair warning but once again, please do not underestimate this book, as we make sure each chapter reaches a quota of 15k chapters. Also this is a collaboration with @Mondi06
His will to SAVE V.1 (Rebooted Check Rewrite) by WintxrCherryX
WintxrCherryX
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When Error CQ received the bad end of their story, he couldn't take it, no, he would not take it. He could not let go, especially since there could be a chance to help Geno, like in the time travel stories! So when he found out the existence of the RESET button, his Determination coursed through him, he wanted, no, he NEEDED to save Geno... To stop his brothers from dying. By his own hands or from the sickness... So with that Determination coursing through him, His will to SAVE his family starts. He never took into account on how hard it will be, or how much it'll take a toll on his mental health. !!MOMMA CQ AU!! !!TRIGGER WARNINGS!! • Angst • Sensitive topics like being self destructive • Major character death... Multiple times • Sad Error • Sad Geno - Sad Fresh
Esmeray by WintxrCherryX
WintxrCherryX
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When the Dreamtale twins met a strange skeleton who offered them company, things turned for the better or for worse. The new skeleton quickly gained the trust of the two twins and helped them through thick and thin, even the 'evil' Nightmare. So when the skeleton they've grown fond off disappeared one day, they couldn't help but worry as to what had happened to them. And even now, they still do. After all, centuries later, they came back to Dreamtale and found a little locket that belonged to their self proclaimed brother, things gets 𝘲𝘶𝘪𝘵𝘦 interesting afterwards. !! TW !! WARNINGS !! • Mentions of Death • Ambush, of course • Betrayal • Ink • One sided love • Yandere-ish vibe • Murder
The End's Destroyer by WintxrCherryX
WintxrCherryX
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Taken from his home and forced to a body which the age is not his own, Error was forced to Destroy against his will as he tries to recall the memory of his past. For odd reason, he has a fascination with the color purple and children toys however. Ehh, probably just a mess in his code. It'll fix soon... Hopefully. Hey! Mama Blue's here again! He wants hugs now, and hugs he will get. !!Trigger Warnings!! • Dumbasses • Ink • Fate • Cursing • Crack • Angst • Bitch wtf moments • Possible triggering topics since this is still an FGOD book.
His will to SAVE [Old, Rewrite Is Out] by Mondi06
Mondi06
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When Error CQ received the bad end of their story, he couldn't take it, no, he would not take it. He could not let go, especially since there could be a chance to help Geno, like in the time travel stories! So when he found out the existence of the RESET button, his Determination coursed through him, he wanted, no, he NEEDED to save Geno... To stop his brothers from dying. By his own hands or from the sickness... So with that Determination coursing through him, His will to SAVE his family starts. He never took into account on how hard it will be, or how much it'll take a toll on his mental health. !!MOMMA CQ AU!! !!TRIGGER WARNINGS!! - Angst - Sensitive topics like being self destructive - Major character death... Multiple times - Sad Error - Sad Geno - Sad Fresh
The Forgotten Creator by 09Shell_Sea09
09Shell_Sea09
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Error always knew some things where off. He knew how to create things he had no memory of learning how to. He always felt off. It hadn't started off with a bang, in fact they had started with the whisper, and it had come over time. Over observation. Until he finally realized, exactly what had been done to him, and the full extent and reason of Fate's hate towards him. Balanceverse - My new AU created with @gdesertsand, our new baby Inspired by Harrish6, Healing what has been broken.