Undertale Bad Sans Origins

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Parts 1
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Reads 10
Votes 0
Parts 1
Time <5 mins

headcanon killer killersans nightmaresans omensans origin personalcanon undertale underverse

My head/personal canon for all bad guy sans. I know it's not very appealing but I think I made it interesting, I have a lot of very out there head canons and I hope to post something for all my favorite characters.All Rights Reserved

headcanon killer killersans nightmaresans omensans origin personalcanon undertale underverse

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Killer sans origin
Thu, Jun 17, 2021

1 part

Killer sans origin
Thu, Jun 17, 2021

#535killersans

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Nightmare, who has been dead for the last century, stumbles across a dying Sans in a destroyed au and takes him under his wing. Er, tentacles. From there, they start a band of rejects to get revenge on his brother. Sadly, said brother has other plans for them. That wont stop the shakily made team from bonding and having fun though! (AU where Killer is the leader of the 'Bad Sanses'. I own pretty much none of the characters)

Killed it! {Reincarnated as A Killer Varient} by coolkidindahood

⪼Beaten up and betrayed, {Name} dies an unfair death because of their best friend. Having their life and their brothers whisked away in a flash. ≫They find that they inhabit a certain skeletons body, trying to live happily before having their murderer breathe down their neck each second. ≫Its up to {Name} to figure out whether they want to join the good side, or the bad one. {"𝙸 𝚑𝚘𝚙𝚎 𝚢𝚘𝚞 𝚋𝚞𝚛𝚗 𝚒𝚗 𝚑𝚎𝚕𝚕 𝚢𝚘𝚞 𝚍𝚎𝚖𝚘𝚗 𝚌𝚑𝚒𝚕𝚍."} ⧼Reincarnated as Killer sans variant Story!⧽ ⚠︎Warning.1 ! This story contains no ships⚠︎ ✐Simple terms; ✂ Flirts are contained, but will not have any feelings attached to it. ✂Blushing is NOT in a romantic way in any way ✂Physical affection is all platonic. ⚠︎Warning.2 ! This Story contains spelling mistakes, and poor grammar. English is not my native language.⚠︎ {COVER MADE BY ME!!!} __________________________ Ranks; ➫ 19/05/2024 - #1 in; Multiverse. ➫ 15/06/2024 - #1 in; Chara. ➫ 23/12/2024 - #1 in; Badsanses. ➫ 08/01/2025 - #1 in; Undertale. ➫ 24/01/2025 - #1 in; SansAu. __________________________ Started; 03/04/24 Ended; ????

Killermare (I can't think of a title-) by avxntxrime

Completed: August 8th, 2020 Killer is nightmares right hand man. Doing everything nightmare pleases. (That sounded wrong. Not in that way- Anyways-) though errors second in command. Meaning he'd be in charge if nightmare couldn't. Once killer thinks about why error does almost nothing even if he's second in command. Did nightmare choose killer just because he wanted too? Did nightmare want killer to be there 24/7 for a reason? but what would happen if the good people weren't what they seemed? Read this shitty shit to find out, ha. This is so bad but people seem to..like it? I don't know how but enjoy this...creation THIS IS AN UNDERTALE FANFICTION

Hello, this is an au where the bad sanses adopt a kid which would be you ^^ only brotherly and fatherly love ^^ please enjoy this! This book was inspired by a book I read a few days ago. you were adopted by skeleton monsters let's hope you get along with them all! I hope this is rather interesting because I have never seen this concept before enjoy once again!!! all genders are welcome!!! This is a Child Reader x Bad Sanses thingy. Cover art will be uploaded soon!

cover art isn't mine and belongs to its rightful owner Error is finally ready to give in. The multiverse he spent so many eons protecting and keeping the balance is rebelling against him. The AUs he has spent so long protecting are rebelling and are soon to be destroyed, but worst of all, all of the Sanses hate him for some reason. And I mean ALL. Why should he continue? There's nothing to live for anymore. Not even his family can help with this. Or, the people he thought to be his family.

This life as Error Sans. by coolkidindahood

⪼A life where our beloved [Reader/REDACTED] died a very.. 'Fun' death. ⪼upon realizing their death, they'd realize that they reincarnated into error sans, a character they used to know as a kid. ⪼[REDACTED] Gained some friends that were on his side along the way, siding with the bad side of the AU's proudly. ⪼would [REDACTED] find out new things, new people, and keep up with their act? ⪼("SkReW yOu gOd!!1!".... huh?) ____________________________ ⚠︎{This story was made as a joke at first, the writing improves as time goes on. This story also contains swear words, No ships, And some grammar mistakes}⚠︎ ⪼(Cover made by me.) ____________________________ ⪼23/1/24 - #1 in Ink ⪼23/1/24 - #1 in Balance ⪼23/1/24 - #1 in Noships ⪼25/2/24 - #1 in Dreamsans ≫08/3/24 - #1 in Multiverse ⪼18/3/24 - #1 in Ausanses ≫29/3/24 - #1 in Inksans ≫30/3/24 - #1 in Undertale ≫03/4/24 - #1 in Reader ≫17/5/24 - #1 in Underverse ⪼24/6/24 - #1 in ErrorSans

Ink relocates error (kidnapped) by KarmaAkabane425

Yeah I gained an idea and stuff so things will be different even personalities and everything you can think of :)

Wait... I'm Nightmare!? I Thought I Died!? by Donut2460

Discordance In The Balance (Nightmare and Dream x Corrupted! Reader) by Mysteriousghost102

After becoming friends with none other than the guardians of the tree of feelings, you realize more things are going on than the guardians care to reveal. After attempting to help them you end up corrupted and your friends trapped in stone for 500 years. . . Currently rewriting!! This is a sans x reader fanfic so don't like don't read. Reader is gender neutral and there is 18+ stuff in this book so please keep scrolling if you're under 18! So minors please avoid this like the plague There will be warnings at the beginning of chapters, if there's something I should put a warning for please tell me. Y/N = your name F/C = favorite color See anything else to put ill put it here /|\ ---WARNING--- This is mainly for fun and ideas put together from what my brain spews so continuity errors may happen and i will try to fix them accordingly. Again this is just for fun and nothing is really planned just improv to be honest. Still hope you enjoy! The cover was made by me

Murderous lovers dust sans x reader by YURI_YUTO

You are a cold killer. Being childhood friends with ink cause you b8th were failed experiments and left with no souls. You killed your parents cause they hated you and you killed everyone in your au and did mutliple genocide routes just stop the human from killing you and your papyrus. But your papyrus stayed in the broken au cause he hated the new you. Then you joined the bad sanses and your work partner is dust sans. At first you didnt like the looks of him but then you reliase that he is the same as you. Did multiple genocide routes just to stop his frisk and now you guys keep on getting closer to the point you guys fell in love with each other and nightmare didnt approve of it at all.

Soul Fused

Nightmare, who has been dead for the last century, stumbles across a dying Sans in a destroyed au and takes him under his wing. Er, tentacles. From there, they start a band of rejects to get revenge on his brother. Sadly, said brother has other plans for them. That wont stop the shakily made team from bonding and having fun though! (AU where Killer is the leader of the 'Bad Sanses'. I own pretty much none of the characters)

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