1 - 20 of 251 Works in Polyamorous Bad Sanses | Nightmare's Gang (Undertale)
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Dust was on his couch after yet another long day at work when he saw a blinding flash of light in his garden. Getting up he slowly approached the bay window to take a look outside... and saw four strange skeletons dressed as a viking, a noble, a knight and a Roman yelling in foreign languages at each other.
He didn't know why he opened the window nor why he invited them inside, but he did, and by doing so he sealed the beginning of a very weird adventure with his four new roommates...
Dust - Modern Time, speaks English
Horror - Scandinavian Viking, speaks Old Norse
Killer - Ancient Roman, speaks Latin
Cross - Medieval Knight, speaks Old French
Nightmare - 17th cent French Noble, speaks Classical French(Cross-posting on Tumblr ! @/mikimakiboo
Basically a story about the boys coming from different time periods and time traveling together
Short chapters but it allows me not to burn-out too fast :')
Also, time being what it is, I should specify that I did NOT use AI for anything in this story, the languages all come from long researches to translate word by word in some cases, I did it all myself without the use of AI)
Series
- Part 1 of Time Travelers AU
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Falling.
You were falling.
…Or were you?
You were weightless; both falling and floating; suspended in midair, nothing below your feet, but also no air flying past your face or whipping your hair around to tell of gravity’s play of hand.
And it was dark.
Suddenly, in the middle of the far distance, a white light appeared. With each passing second, it was growing bigger, bigger, and bigger still.
You realized, belatedly, that the light was drawing you in, tugging at your very being, and something about it was… awakening something within you.
The light grew closer, and your hope stirred.
You hadn’t wanted to die. You didn’t want to die.
You looked up into the light, and you reached out with everything you had.
With one final tug, the light pulled you into its embrace.
And just as tightly, you held on.
Series
- Part 1 of Falling Forward With You
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Your day starts off bad, and somehow, food only makes it worse.
Luckily, your boys are there to help pull you out of your slump.
Series
- Part 2 of Falling Forward With You
- Language:
- English
- Words:
- 4,960
- Chapters:
- 1/1
- Kudos:
- 19
- Hits:
- 133
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Exactly what it sounds like; Flufftober 2025 with UTMV, except there's a different ship (almost) every chapter. Every chapter is in a different universe--except when they aren't. I don't know what else to say. Expect OOC-ness and fluffiness.
Also, I apologize, half of these ships do include Nightmare. I have a favorite.
Now including a table of contents!
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Snap back to reality by PrettyBlueJay
Fandoms: Undertale (Video Game), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
25 Oct 2025
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(W.I.P. Things are bound to change)
“Nighty.. what’s that..?”
Nightmare blinked before staring at the child cradled in his arms, looking back up to Killer with a blank look
“Well.. you always said you wanted kids-“
“You can’t just kidnap a kid, Night!”Or
My AU where the bad sanses get transported to the mha universe, turned into humans and then get parenthood shoved in their faces(first chapter will only be headcanons and designs)
Series
- Part 5 of BSP poly moments
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My dad sold me and my brother to the mafia for a shoelace by DualityofMan
Fandoms: Undertale (Video Game)
22 Oct 2025
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“Stop messing around. We’re supposed to be keeping watch.” Cross huffed, turning to face XChara fully.
XChara glared at the snow when Cross said that. He reached down and scooped up some snow into his hand.
XChara ignored Cross’s attempts to get him to lock in. “Why do I even try…” Cross rolled his eye lights and turned back to face the crowd of people, but was hit by something cold and hard on the side of his skull.
“BAHAHHAHAHA!” XChara was rolling on the ground clutching his stomach from laughing as he watched the snow slide down Cross’s cheek.
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Cross and XChara find themselves stuck in the middle of an ongoing Multiverse war as they where sold off to Nightmares gang for his super secret evil plan----
first time writing fan fiction, kinda nervous
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Saffron, the son of King Nightmare and his harem, has always felt a strong connection with nature. Now that he’s nine, he’s allowed to go on camping trips. What could possibly go wrong?
(My Halloween story. Updates every Saturday of October.)
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“Ya think yer real funny?! Don’t’cha buddy?”, Horror growled with contempt.
Blood and spit dripped down his still clenched teeth.
The liquid spilt onto Killer’s smushed cheek as he struggled against the other monster’s hold.
Through the haze of his mind Killer succeeded in drawing his shaky hand down from his neck and weakly curling it around the first rib he could get his grasp on- before pulling as hard as he could.
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Or Killer is having problems with his messed up soul and is just trying to make it through the day without tweaking the hell out.Killer and Horror lowkey just beat the shit out of each other for funsies!
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Nightmare, trapped in stone for a millennium, awakens to find the world completely changed. And his lovers to be in a less-than-stellar condition.
It is possible to hate flowers, of all things, with all your being?
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Abandoned dogs don’t stay where you leave them
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Something bad happened and now they hate him. He’s the only one holding on, the only one who cares about their relationship. He needs to leave, and so he does.
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One moment, you’re living a dull life, following the same routine day after day. The next, you wake up trapped in a cold, unfamiliar place, surrounded by bars and creatures that aren’t human. Your purpose here? Maid. At least, that’s what they say. But there’s more to this dark, twisted world than simple tasks. The figures watching you from the shadows have their own plans, and you're nothing more than a pawn in their game.
is this good enough or what? JUST READ IT ALREADY!
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Fresh meant to call his brother for help. That was the number he dialed, but when his pleading voice spoke out a darker voice answered his call for help. After all, Fresh was Error’s brother. -Prompt based on a WebRead Novel ad-
Series
- Part 1 of Fresh Adoption
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(TAKES PLACE IN THE FUTURE OF MY OTHER ONGOING WORK, 'A Gang of Mentally Unstable Delinquents'! PLEASE GO READ THAT FIRST!!)
killer and swan bonding time
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A collection of Undertale UTMV one-shots and small drabbles that I don't want to make entire stories for.
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it's ya boy, bringing you skeletons \o/
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More Flash Fics for Kridow by Mochimunchies for KridowKMS27
Fandoms: Undertale (Video Game)
11 Oct 2025
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A short collection of flash fics/oneshots specifically focused around fight scenes for Kridow!
Includes:
Chapter 1 - Ink vs Error
Chapter 2 - Blue vs Murder Time Trio
Chapter 3 - Paperjam & Gradient vs Ink & Error
Chapter 4 - Nightmare vs Fatal Error
Chapter 5 - Geno vs Bad Sans GangSeries
- Part 12 of Flash Fiction Giftfics
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It took a few moments for you to register Inks words. Guard this AU? from someone? Usually your job would be the same rinse and repeat process. They take you to a timeline or an AU that's usually corrupted beyond their capabilities to repair it, you mess with it's code to fix it.. some usually taking more energy than others to repair, and then you get sent off with a thank you and a false promise.
Whatever, it's whatever anyways. You'd probably forget you even held a grudge in the morning. Why stir up trouble you'll probably just regret making a scene of?
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Reader, as an outcode is hired to fix up any corrupted or damaged AUs that has fallen victim to the bad sanses. And in return, gets into way too many things other than what they wanted.
The multiverses most toxic situationship things ensue.
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Nightmare takes in a new pet. If Cross would just realize that it was only for his best.
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Soft little stories focused on nausea and vomiting, with Cross as the sickie