1 - 20 of 3,236 Works in Sans Ensemble (Undertale)
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It has always been your dream to rise in life, even though many said it was impossible for someone of your class. But something your soul truly longed for was a soulmate. Anyone who carries a heavy burden wishes for another soul to be their anchor, their motivation. However, it seems you weren’t born to have someone by your side forever.
And now just because they’ve now become your soulmates doesn’t mean they’ll take away everything you’ve worked so hard to achieve.
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Inevitable Fate of Orchestrated Lies by FeralPossum_UniverseDestroyer
Fandoms: Undertale (Video Game)
23 Jan 2026
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An excerpt:
The careful song and dance that Error and Ink took part in whenever they were fighting went unnoticed. The fast fighting styles clashing together made it difficult to see where they were, not even mentioning seeing the moves.
It was a strategic choice. Because if someone were to see, they would immediately be suspicious and Fate’s careful plan would all be crashing down in an instant.
Where: Dream has questions, Ink and Error are in kahoots, Fate is present, and others are watching.!!WILL TRY TO UPDATE EVERY WEEK/OTHER WEEK!!
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(Remake of an old piece of fanfiction.)
Dream falls ill after trying to impress those around him, and Cross is unable to take care of him due to other circumstances. He ends up going to the last one he would even consider letting touch Dream.
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Once again I'm participating in the Rarepair New Year event, hosted by the wonderful Kamari!!!
As always, this is a collection of random ships and prompts/tropes, ranging from sweet SFW fluff to tasty NSFW smut. Expect a lot of Sanscest, but also some Papcest and cross-AU Fontcest. Individual ships and ratings can be found in each title.
I hope you'll like these little stories!
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Erroneous Replacement by I_want_to_linger_a_little_longer
Fandoms: Undertale (Video Game)
22 Jan 2026
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This is a thing I did to explore the 'wake up as X character' idea, but with a bit of a twist.
This one starts with Error?
Series
- Part 1 of Missing Quarters
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This is a thing I did to explore the 'wake up as X character' idea, but with a bit of a twist.
This one starts with Dream?
Series
- Part 3 of Missing Quarters
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Nightmarish Situation by I_want_to_linger_a_little_longer
Fandoms: Undertale (Video Game)
22 Jan 2026
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This is a thing I did to explore the 'wake up as X character' idea, but with a bit of a twist.
This one starts with Nightmare?
Series
- Part 2 of Missing Quarters
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High School Of The Anomalous by EmeraldOnion, TheOtherOnion (EmeraldOnion)
Fandoms: Undertale (Video Game), Undertale Multiverse - Fandom
22 Jan 2026
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After witnessing Error do the impossible, Blue is determined to get closer to Error and learn about his secret. The world of supernatural abilities, however, is much more dangerous than he could ever expect, and now that he has fallen into the rabbit hole, there is no turning back.
Luckily, Blue will not have to do it alone.
Unluckily, Blue will not have to do it alone.
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Single Mom With A Single Job , What Could Possibly Go Wrong ( Everything )? by Sharkster27
Fandoms: Undertale (Video Game)
22 Jan 2026
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Reader is a nineteen year old single parent struggling in a college town while trying to support their child. After being fired for my heir job they apply at an on campus cafe hoping for a decent chance at financial stability.
(Chapters when I have time )
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Living in a cool new city with your best friends can only mean good things!
…right?
It depends on who you meet and how well you really know your new roommates. -
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Killer lived his whole life by following 3 crucial rules, what happens when he accidentally breaks all of them?
How does he cope with a world that is slipping away from him as he struggles to keep himself from spiralling?
Can he help everyone or will he fall?
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Ray wakes up in a strange dungeon in a stranger castle with even stranger people...
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Blue and Razz are stuck inside a new Au, notably similar to their own. They both find each other and try to survive it together...while being hunted down by the Sans of the Au. Who they deemed as Violet/Indigo (They're the same colors right?) They avoid the Sans for as long as they can, but they can't do it forever. And to add the cherry on top, the Queen will deal with them sooner or later. And who would've thought that their absences in their Aus would cause such issues!!!
[There's actually no fics of these three and it's driven me bonkers!! They deserve love too!!]
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I STAND FOR THE SFR/FS FANS, I AM HERE TO SERVE AND DELIVER!! -
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The first story of the series. Follows our protagonist through his rebirth and until he (re)enters the Multiverse.
In case you couldn't tell I suck at summaries, I'll get better eventually, probably.The Major Character Death Warning is temporary and happens multiple times btw, it is a little confusing at first but you will understand as the story continues.
Prologue: Rootverse's Collapse (1)
Arc 1: Rebirth (2-7)
Arc 2: Meeting Familiar Faces (8-80)
Sub Arc 2.1: The Teeth Incident (20-41)
Sub Arc 2.2: The Magic Incident (42-50)
Sub Arc 2.3: Time For Shopping (51-59)
Intermission: 1st Major Time Skip (60-62)
Sub Arc 2.4: The First Human (63-80)
Arc 3: The Tragedies That Follow (81-?)Series
- Part 1 of Miseries of Metempsychosis
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You have had a tough life that has left you scarred and untrusting of others. Growing up in a mage family obsessed with power and ensuring their lineage, you are the black sheep of the family, possessing a green soul of kindness and excelling in healing and growth rather than the combat magic your family specializes in. Trapped in a loveless relationship with a controlling, abusive partner chosen by your family to ensure a 'proper' match, you live in fear of triggering his anger, often resorting to your magic to heal yourself. Every aspect of your life is controlled by someone else, leaving you resigned to survival and scraping together what happiness you can.
What you could never foresee is the way a miserable night out with your fiance would lead you to a drunken one night stand with your soulmate.
Nor could you predict you would have 9 more soulmates out looking for you.
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You died.
Plain and simple, one moment you were there, strapped to the table in that ever so dark laboratory. Then a loud cracking had occurred - the sound of your own soul giving up. It had been deafening, like ice breaking beneath your feet. That purple crystalline heart shattering like fragile glass, unable to persist any longer.
The testing had been too much for you, not even you could persevere through it. Not after months—years.
You…died?
Then why were you here? More importantly where? What had
Gasterdone? And why did reality seem to glitch in and out with every painful thrum from where yoursoulshould be? And who were these skeletons that felt oddly familiar to yoursoul.>> Persevere?
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Multi Chapter Story dump/oneshots of the Bad Sanses and anyone they interact with
Yes both. I just dump stuff. Whatever happens happens and sometimes they'll reference each other.Eventually, bad sans poly. Currently, Kross!
I dont edit or reread these beyond the google word fix and making sure the word actually is wrong. If you see something weird relating to how a sentence is done, feel free to point it out- I will (probably) fix it. This is just to get out my ideas!
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5
The threads of time unravel in the air,
Like torn-up webs that grasp despair.
He pulls the strands, but all breaks free,
Each touch a leap to agony.4
He's just a shadow from battles past,
An E.R.R.O who saw too much, too fast.
His eyes hold endings, countless, grim—
A thousand fates that died in him.3
Butterflies that dance astray,
Each one a second, lost away.
He tries to stop, erase, remake,
But chaos spins with no mistake.2
Inside his soul, a silent glitch,
An echo from a time so rich.
And though he fights, and though he cries,
The universe responds with lies.1
He sleeps in void, for void he is,
A soul that won’t accept what is.
No peace will come, no light, no win,
Until he learns to face his end.
0- Language:
- English
- Words:
- 6,032
- Chapters:
- 1/25
- Kudos:
- 5
- Hits:
- 33
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Rarepair New Year - started with a little kHISS Like tHISS by Anjel_X
Fandoms: Undertale (Video Game)
20 Jan 2026
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While his men are on a lengthy mission, Nightmare decides to find a few more recruits... he might've bit off more than he could handle...
Nightmare/Bad Sans Poly (Killer/Dust/Horror/Cross)/Bad Snake Poly (Lamia!Killer/Lamia!Dust/Lamia!Horror) for Rarepair New Year 2026
Series
- Part 22 of Gyftmas, prompt and other BONEus events
- Part 3 of Rarepair New Year that's so RARE it's UNDERCOOKED
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A completely normal human getting Reincarnated as a certain Skeleton's body! A story about hope! And definitely not set on crushing yours.
Oh! And somehow everyone thinks he and Error are a couple...Huh weird right?