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Your name is Sans Serif. Your identification card says so. Your work permit says so. Your residential assignment says so. Your brother’s dependency papers says so. The Ministry says so, and so it is true.
But when you and your brother are rudely pulled into a peaceful alternate universe at the worst possible moment, the entire foundation of your identity is put into question. You are one of several. One of possibly more. You don't trust any of this, especially not that human, yet you can't help wondering... should you even try to go home in the first place?
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An old fic I started in 2018 and decided, hey, why not revisit it in the good old '26? Machine troupe but you are a Sans, and make it an Anti-Harem.
...Oh, and did I mention totalitarianism?-
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Ch 4
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7
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When the people started becoming monsters, Qiunn wasn't surprised. She had been waiting to meat them for years. She just wished they wouldn't keep her waiting.
You know how this gose, Monsters surfacing makes humans become mimics. MC needs help but the font clan already has a mimic to look after.
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1 (HEHHEHEHEHEHEHHEHEHEHEHH)
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The House Next Door by BattleMaiden13
Fandoms: Undertale (Video Game), Underfell - Fandom, Underswap - Fandom, Swapfell - Fandom, Mafiatale - Fandom, Mafiafell - Fandom, Mafiaswap - Fandom
11 Jun 2026
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The first time you met monsters you manage to run into four of them and literally run into one of those four. Now they are apparently moving in next door with their siblings and you can't seem to imagine a life without monsters. On the plus side they tell horrible jokes and have endless amounts of energy. So what could possibly go wrong.
Part 1) Chapters 1-138
Part 2) Chapters 139 - ???- Language:
- English
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- 965,685
- Chapters:
- 205/?
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Your life was perfect. You grew up in a happy home, were a good student, had two best friends, and fell in love. But when one of your best friends dropped you, it all went downhill. You moved to a new town after dealing with a bunch of drama and you run into your ex-best friend.
She's happy. And in love. And her boyfriends dislike you for some reason?
You try becoming her friend again. And it's slowly working, but what do you do when she tells you a secret that could literally put innocent people in harm's way?
ON HIATUS INDEFINITELY.
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After much thought and consideration, you decide to move so you can save money for top surgery and testosterone.
What you didn't expect is for a group of skeleton monsters to welcome you with open arms. Well, for the most part, at least.
You just hope that being a selective mute around them doesn't make them think any less of you.
Actions speak louder than words, right?
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Bookmark Notes:
Ch.2
I love this
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sans brings home a machine (one that’s already ruined his life more than once, by the way.) it malfunctioned, tore holes through reality, and dragged in his counterparts from places that he shouldn’t have business knowing existed.
so when the machine activates on its own once more, he heaves a sigh and slumps down, mentally kicking the bucket. nothing surprises him anymore; the machine convulses like it always does and he expects another version of him to tumble out. he gets his speech ready and—
oh. it’s a human.
- Language:
- English
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- 106,860
- Chapters:
- 24/?
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- 220
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A version of Sans haunted by his past encounters awkward situations with other versions of himself across the multiverse. From there we follow him to explore his journey of change. As well as interesting interactions between characters through each event that occurs.
Or: Haltedtale Sans, an alternate universe of Undertale I created meets other versions and creates chaos.
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I'm bad at writing summaries, sorry :<
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Author: DKperson
Name: The Ghosts and the Change
Status: Ongoing
Crossposting: A03
Link: https://archiveofourown.org/works/62039989/chapters/159175897#bookmark-form
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You were one of those rare humans who had a white soul mark, everyone else had one that resembled the souls trait. It wasn't until monsters broke out from their dire prison, did you realize that your soulmate wasn't human. Yet...there weren't that many monsters, so why hadn't you met your soulmate yet?
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Ch 1
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You'd been happy. Life had been going perfect. Until it wasn't. You lost those dearest to you and in your mourning and grief, you suddenly find yourself staring at the machine in the basement. Then you're whisked away to another world and things just seem like so much given all you've already gone through.
How will the Skeleton House react when they learn a secret even you don't realize you're hiding? And can they help you recover from your grief?
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You were a normal human. Seventeen, just got accepted into college. You had a full life ahead of you, close friends and family. You still had things to do. You weren't done yet.
The universe doesn't seem to care, and you wake up in a lab to a narcissist skeleton and trauma.
What the heck. This is NOT what you meant when you said you were tired of life, bro.
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Or, your soul is placed into the body of eight-year-old Papyrus.
A retelling of Running Up that Hill, but Keigo and Apollo (Sans and Papyrus) are swapped.
Lets see who has plot armor now.
Arc 1: Secundogeniture (1-6)
Arc 2: Sin (7-?)
Arc 3: Sanctuary (?)
Arc 4: Stalking (?)
Arc 5: Salvation (?)Series
- Part 4 of How To Be A Human Being
- Part 2 of Hounds Of Love
- Part 3 of I/Me/Myself
- Language:
- English
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- 21,837
- Chapters:
- 10/?
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- 1
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- 145
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- 446
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- 117
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You: a leviathan octopus
Nightmare: octopus
Dust: bull shark
Horror: whale shark
killer: great white sharkyou lived for so long, you have seen a lot, you have experienced so much, that, one day you fell asleep, and days turnd to weeks, and those turned to months and then years and decades and millennial, you don't know how long you slepped but some thing woke you up today.
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Bookmark Notes:
Ch2
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It's Just a Bottle (Horror struggles with a meal). by Barksenji
Fandoms: Undertale (Video Game)
20 Mar 2025
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Guilt.
Although he had long since grown accustomed to feeling it, it was still foreign. A part of him wanted to believe that none of it was his fault, that he had merely been a victim of circumstance. But another part of him—his more rational self—truly bore the weight of his actions.
And that was why, even though the sight of a full plate of food would have made anyone in his state happy, it only made him nauseous.
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Horror & Dust
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You’re six months into your career as an electrician and for the first time in your life, you’ve got your shit together. Go you!
When the job brings you to a mansion inhabited by skeleton monsters and your ex-girlfriend, things change. The wiring in the house is fried, the skeletons are suspiciously evasive about the basement, and your ex keeps inviting you for sleepovers.
You just want to get through the repairs without setting the place on fire. Keeping your sanity intact would be a nice bonus.
Or another anti-harem fic, but in this one, the girlfriend is into you too.
Series
- Part 1 of Circuit Breaker
- Language:
- English
- Words:
- 80,599
- Chapters:
- 13/?
- Comments:
- 823
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- 1,417
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- 381
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- 30,665
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One of my greatest treasures
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On. Chap 13, i am so fucking sad that this is not continued since the author didnt update it in a long time especially since this is such a good fanfic, the way the author writes is amazing, and the characters feel so like them and accurate to the point it feels personal in a way, and I didnt even notice ay plot holes, alongside their great writing the plot is great too and everything omfg. I am so sad and literally crying that theres no chapter after we meet Cyrus bro.
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Through the dust, four skeleton Monsters made their way to your gate, clumps of dirt and grass kicking up from their speed. Outfitted in high-quality leathers, they all sported their fair share of firearms, two openly brandishing revolvers.
They were, in fact, not the Moore brothers, their lack of physical skin was more than enough proof of that. Even so, you didn’t have to look too closely to know they were just as dangerous, if not more so. Then, on top of it all, the fourth and largest skeleton of the group lay over the third’s back, long arms limp as a large hole in his skull bled magic and dust down the front of his partner.
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1
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Chapter 1
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an·thro·poph·a·gus
noun:
a cannibal, especially in legends or fables.___
Sans was broken, and all he wanted to do was keep his brother alive. You were supposed to be food, something to keep his family fed for a few weeks.
But now he’s just determined to keep you alive in this living nightmare, as well.
___
Updates every Saturday/Sunday
- Language:
- English
- Words:
- 50,185
- Chapters:
- 19/19
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- 672
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- 1,729
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- 302
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- 36,062
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Chpt 18
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You're an engineer who works for Ebott's best research facility in one of the labs; your lifelong dream after finding a journal on Mount Ebott when you were a kid. When you aren't in the lab being smart, you're gathering materials at the abandoned doll factory for the machine you're trying to build.
But one night, you meet a skeleton at the factory. Naturally, you lie about why you're there and say you're there to hunt ghosts. You befriend him and try to find a way to gather the materials while keeping up with that lie. But those lies catch up to you when you start to meet all the other skeletons.
Edit: As of Chapter 29, all chapters have been edited and fixed slightly!
- Language:
- English
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- 147,331
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- 55/?
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- 1,166
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Wow, this skeleton monster who came into the clinic you work at sure does keep adopting stray cats. He's kind of an idiot too, and his jokes are really inappropriate, and he may be a little excessively stabby...
You maybe might possibly be falling for him though? But good luck getting him to express a single genuine emotion lol.AKA, two idiots who are bad at emotions bond over cats. A lot of cats.
Series
- Part 1 of Poor Little Meow Meow-verse
- Language:
- English
- Words:
- 70,617
- Chapters:
- 24/?
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- 1,169
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- 3,125
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- 591
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Killer x Reader that's just fire 🔥🔥🔥🔥
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👀
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After your best skelefriends disappear on you with only a shitty phone-call goodbye for 'closure', you find yourself spending months looking for them everywhere -- failing, failing, failing until one certain trail led you to getting lost in a forest on a mountain, had your life threatened more times than you could remember, and made what were only two skeletons at first suddenly multiply in count.
What no one expected, however, was how your SOUL made you hold a secret nobody was aware of, and just how it made every single thing connect to you.
...Unless, of course, you were Sans.
Almost unless, anyway.
Just an advice though, dearest Reader?𝘿 𝙤 𝙣 𝙤 𝙩 𝙙 𝙞 𝙚 .
Boy, are you in for a ride.
Series
- Part 1 of ksverse
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Monsters emerged from Mt. Ebott only a year ago, many had accepted monsters, but many had not been as accepting of the new race.
You lived in a small town of Ebott a few hours drive outside of the borders of New Ebott city, you owned and ran a small shop. You knew just about everybody in this small town, but it seems there’s a few new comers, more specifically skeletons that move into the property down from yours.
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Ch18
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This gaggle of wise-cracking skeletons keep popping up and acting like they know better. And boy, do you hate it when someone even THINKS they know better than you. Your mum says you're a proactive control freak, but these skeleton should just take a step back and let you lead the way! They’re just begging for you to be spiteful at this point. Or just, like, a little bit petty. Who knows why they keep inserting themselves in your life?
- Language:
- English
- Words:
- 65,175
- Chapters:
- 15/40
- Comments:
- 239
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- 574
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- 143
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