1 - 20 of 134 Works in Echotale Sans | Gaster Sans (Undertale)
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A rewrite of a previous fic, changed structure and story and more Sans' to have sex with.
Years have passed since the barrier had fallen and freed the monsters. You had your found family with them, Sans in particular being your best friend and support. You heard of SOULmates and how monsters have them, you wondered yourself if humans also had SOULmates, and you find out as you begin to travel through different Undertale AU's just how SOULmates and SOULs work through the multiverse.
*I DON'T USE Y/N*
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You are a college student that just want to get yourself together, get a degree and make money enough to live alone in a cozy flat. But what should you do when you struggel with studies and different jobs while sharing a life with skeletons whom seem to don't like you?
Determination won't be enough to keep living in this hell. And a friend of yours make sure you remember that everyday.Now the breaking news:
- I love comments
- No beta reader
- English is not my mother language
- Long time until next update
- I am as bad as Asgore to name and nickname the characters -
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Summary
It's been three moons since Night killed everyone in his village. Its been three agonizing, heartbreaking moons since he had killed his brother.
There's not much to do in a soulless world. This changes, ever so slightly when he hears a desperate call from someone in the abyss.
Night doesn’t know what to make of his new situation, and he can't bring himself to move on just yet from the horrors he's committed. But life demands his interaction and input, so he forces himself up anyways.
Dream would do the same, if they were here. But they're not, so Night might as well pick up the slack.
Series
- Part 1 of One Hand Offered
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You were finally getting your life back on track. Juggling college courses and a new job, you were slowly but surely rebuilding from the ground up, convinced the worst was behind you. That all changes when a magical summons you can't refuse rips you from your world and drops you into a house filled with powerful, skeletal monsters who despise you before you’ve even said a word.
To them, you are the arrogant and careless human who shattered the soul of their dearest friend, the gentle mage Lyra. They see you not as a person, but as a living tool—a magical "key" they require to heal the damage you supposedly caused. Trapped in a multiversal nexus with no way home, you must navigate a gauntlet of relentless animosity and suspicion.
Every word you say is twisted, every action is judged through the lens of lies you don't even know have been told. How can you survive in a home that isn't a home, surrounded by enemies who believe they are the heroes? And how can you prove your innocence when the true manipulator is the very person they've sworn to protect?
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What happens when everything changes? Everything is the same but it isn't.
An entity from the stars descends to earth and disguised themselves as human. They witness history in this new era of monsters and humans, while also dealing with the demons that dare dirty the earth with their presence.
What happens when you step into the battleground from one universe, only to win and come out into another parallel world, except you’re the protagonist?
You weren’t one for the spotlight. You loved your sister, even if she wasn’t one by blood. You only wished for her well-being and happiness. Except here… she’s gone. And now you have to take her place and stand under the limelight as you walked your path in her place - the protagonist.
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I DON’T CONDONE MY WORKS TO BE TRANSLATED, REPOSTED AND/OR FED TO AI.
9/1/25 — thank you for 600+ hits!
Series
- Part 2 of Still As Stone AU
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Timeline-Crossed Lovers by Spade_7513
Fandoms: Harry Potter - J. K. Rowling, Echotale AU
04 Sep 2025
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Summary
Draco Malfoy fell through a magical anomaly and ended up in some sort of a fractured timeline space. Before him, time stood still. There, he met Cael (humanoid Gaster!Sans), who's been alone for...who knows how long. Constantly watching timelines collapse and fall apart. Together, they share magic, grief, and small quiet moments in this glitchy-esk pocket of spacetime, the rift between worlds. Draco, however, started to feel something he thought he never would: Connection. Though, this rift can't hold them both for long...or can it? Maybe they could make it work out in their favor?
OR
Draco met someone in some weird spacetime rift, they get along, and slowly develop feelings for each other. Despite the face they were never supposed to meet in the first place.
- Language:
- English
- Words:
- 659
- Chapters:
- 1/8
- Kudos:
- 1
- Hits:
- 3
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Summary
The Serif household has been through many odd scenarios. After all, they are entirely comprised of other versions of the same two skeletons who got stuck in the world they have called home for six years, unable to return to their worlds and thus forced to carve out a life for themselves until further notice. All things considered, they found their stride and adapted to the ongoing weirdness of universe hopping.
That is, until she arrived. Flora, a woman so out of left field and disrupting their normality, appeared in the basement, battered and bloodied to hell and back. Stuck like all the others who had appeared before her, the Serif household is forced to accommodate her until she stabilizes, slowly beginning to get to know the lackluster and stone-faced woman who ensures they don't injure themselves via stupid means.
Few expect her to open up. Fewer expect her to accept becoming friends.
None expect for any of them to become much, much more.
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Reader goes to Ebbot university to meet someone she has been dying to meet for years and then they play a little game/
- Language:
- English
- Words:
- 1,977
- Chapters:
- 1/1
- Kudos:
- 7
- Hits:
- 235
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Summary
After being fired from her job as a governess, Reader is about to be evicted from her house in the city. Luckily, she gets a job, but it's in a small town known as Hope's Bank. Needing a job, she takes it, now she's the sheriff for the town, but it isn't easy with three different outlaw gangs and two troublemakers in town who help her. Will she survive this new job of hers, or will the Wild West claim her life and soul?
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[Honestly..
After everything you've been through you didn't expect to find yourself here, in the middle of a fight between two men you recognized too much to be normal, with your unconscious husband in your arms having a near death grip on both newborns while you could at least stand without feeling your legs numb.
You lost hope of being able to hide when both turned to look at you and your dear still sleep in your arms, whom you quickly hid from sight with your cloak, covering him as much as you could.
"Fuck.."]
Or; After years of being responsible for making the impossible possible in a crumbling world, your people receives an unexpected but not less welcome peace. You don't plan on freeing your claws from this chance.
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When you decided to come to Ebott, it had been a desperate attempt to bring peace into your life. These last few weeks have been anything, but peaceful. Yet you wouldn't change a single day. Meeting them has made you feel more alive than you have been in years.
A softness, a fullness, and brightness that makes your soul swell.
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A little escapee to your boyfriend's family island went terrible, and somehow, everyone's a suspect! You have to get out!
An ‘Among Us’ inspired one-shot, ³¹ december ²⁰²³
Series
- Part 3 of Lui's collection of One-shots
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I think we get the gist right ? Innocent girl,guy,them stuck with skeletons who hate them because of they're precious girlfriend,. Except there's a twist ! Your blind and your married to one of the most viscous sanses in the multiverse nightmare with his crew who care for you deeply as family and let's just when shit hits the fan it's going to be beautiful.
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In one multiverse, there is chaos.
A Creator unknowingly tips the balance, and a Destroyer writhes in pure pain.
The multiverse is governed by Fate and observed by Destiny, Karma, Light, Dark, Death, and Life.
But what no one realizes is—they are not the first.
Fate once created another multiverse… then abandoned it. Destiny, however, did not. Destiny gave it freedom and continued to watch over it.
When the Destroyer is cast into the Void and crashes into that forgotten multiverse, they take him in as their own.
And there, two beings—a skeleton and a human sorcerer—fall in love with him.
Original FGOD!Error belongs to Harris6 (Wattpad)
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Mercury just wants life to go back to what it was a month ago. Working at a job he absolutely loves, going to the bar with his friends, and enjoying the home hes worked so hard to build.
But what do you do when home doesn't really feel like...home anymore?
Why you get a dozen new skeleton roommates, that's what!
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Just a collection of various general headcanons I have surrounding the Undertale Multiverse.
Series
- Part 3 of Headcanon Fics
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You finally have found a reef that has been untouched by sirens, so you bought what you thought was a house on the island next to the reef. When you get to the island, you find that everything is not what it seems and the mysterious call that you have all of your life is acting up in your new location.
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Relationships; matter who it involves man with woman, woman with woman, man with man. A pansexual poly relationship, their ALL just so messy and unnecessary. Who has time to be with a partner (or partners) when the world has video games and mangas. Don’t you just rather read about romance instead of trying master it (especially spicy BL’s with all the saucy pics)
Well do ya?
It’s not like it matters much anyways, since in this story you’re a young adult that lives a rich life of solitude. You live in a small manner on a lonely street, across from you is a large mansion that has been abandoned for decades. It’s so god damn expensive no one in their right mind could afford it, another reason you bought it so you could live a life of solitude. But one day overnight a moving truck full of skeleton’s changed that, with a neighbors of excitable, edgy, witty, slightly annoying and friendly skeletons living next door.
Life has truly changed…
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Sticks and stones are worse than words and you have the text message to prove it. Now your soul is literally broken and your very name has been seemingly erased from the collective vocabulary of the universe. At least there is an adorable skeleton child to distract you from taking care of yourself.
Series
- Part 1 of Shattered Souls Extra
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Castellar ends in the main universe after sans fucks for the 100th time and doesn't bother to realize she has been living in the woods behind his house for three months. She is only found when the horror tale brother happen upon her. Romance ensues.
Sue me.