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The Misadventures of Sans and His Very Normal Skeleton Children by Olrethaz
Fandoms: Undertale (Video Game)
16 Dec 2025
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Summary
Grillby looked down from his bar to a familiar skeletal face staring up at him.
Sans?
But no, for as disconcerting as the resemblance might be this was certainly not a cheeky comedian. If anything, the little one (where are the stripes?) was still, almost unnaturally so.
Huh.
He hadn’t remembered any other skeletons about besides the goofy pair, but there was no way that one of them (Sans it looked like) could have possibly hid the existence of a whole person; or perhaps he had, one he didn’t know he was hiding to begin with-
“ya know where Sans is?” an eerie voice rang and the room stilled, silence as Grillby felt a headache, the world began to spin and-
A cheek-splitting grin “he’s my dad”
Sure, but does he know that?
All at once Grillby was wiping down his counters closing up his bar without knowing how he got there. He paused, then shrugged and figured that he should probably keep some sweets on hand for future reference.
Or
Sans acquires more children than he knows what to do with. Papyrus is ecstatic, the rest of the underground decidedly isn’t. The children(?) are absolutely no trouble at all, if you can believe it.
Series
- Part 1 of Undertale Fics
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Nightmare’s body stopped growing centuries ago.
His illusion shattered in one battle.
Now the multiverse knows what he is.The Bad Sanses aren’t taking it well.
(This is my first time writing a fic like this, so I’m just hoping it comes out okay)
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Nightmare and his goons are living a life as peaceful as can be, until one day they wake up to find him turned back into a kid. What will they do?
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If the shadows had eyes and ears and hands to work with, would it worship the light or scorn it?
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Several not-related shorts about what Sansta left certain skeletons under the tree.
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You’re a villager in Dreamtale that decides to take the place of Nightmare Sans and eat the apples instead to protect him. It backfires and causes both guardians to turn to stone while you end up killing off the village. Now you feel lonely and can’t help wanting someone to stay with you.
Only problem is that you’re a woman with baby fever and the Sans AUs just so happen to act and look a lot like children…
(Dream and Nightmare are like 5,2 while the others are smaller in this story, it’s important)
(Maybe bi-weekly updates?)
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Writing ideas that come to me at the moment, which may or may not be inspired by: Music, my drawings (or others), and/or other fanfics/videos.
Series
- Part 4 of Random Writing
- Part 4 of Oh, look at a fanfic with one of the fanchilds!
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Санс взял брата за руку и побежал. Они никогда не вернутся, никогда не будут оглядываться назад. Они могут идти только вперед. Как можно дальше от экспериментов, от лаборатории, от Него.
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Disoriented and emotionally frayed from decades spent in the void, W.D Gaster suddenly finds himself at the mercy of a cold and arrogant alternate self. His doppelganger promises to return him to the void once his research is complete but before he can make good on his threat, Gaster is introduced to this world’s variant of his son and he is forced to make a quick, spur of the moment decision.
This sole act sends unforeseen ripples throughout the Multiverse and hurdles Gaster on a perilous journey across it to find his way home.
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Dadster plays hopscotch across the multiverse, unintentionally and intentionally acquires children, tentatively reciprocates Grillby's feelings, engages in actual literal custody battles with copies of himself, somehow steals a Bad Sans™, narrowly avoids death at the hands of Error and somehow flies under Ink’s radar for a shocking amount of time.
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System Error: Accidental Acquisition of Children by Frikisbits231
Fandoms: Undertale (Video Game)
05 Sep 2025
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Summary
Error slid down, glued to the tree, his back to the ground, into the lush green grass on the ground. Later, he'd take a look at his current situation and possibly eliminate the place without a problem. Meanwhile, Error was resting, leaning against this comfortable, curvy tree, closing his eyes to feel something, something of the place.
Feel... the familiar ambient magic?
Still no monsters, humans, or standard souls around. Well, no one could hurt him if he got some rest, right?
This time, he mentally prepared himself and repeated the safety tests he felt like a mantra so he could get some rest.
He fell asleep shortly after.
…
Sweetness with hints of security, calm, and the tranquility of dawning rest captured his senses. Something... familiar. Like... like chocolate melting on his tongue. He didn't know how he recognized that either. Still, he pulled the tongue out of his space, to capture it. He caught the sensations, almost becoming overwhelmed by them.
(O: The one where Error acquires an abandoned baby bone, which is, of course, his offspring too, yay...)
Series
- Part 3 of Glitches & Errors Fics
- Part 2 of Random Writing
- Part 1 of ❤️🩹💞 Caring for Babybones 💞🥰
- Part 1 of Oh, look at a fanfic with one of the fanchilds!
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Dying wasn't on my bucket list, nor was being born again.
But at least I wasn't born human again. So, that's a new life experience... with a bonus new life I didn't quite ask for.If only it also came with a manual and a pair of dragon wings.
(Slowburn sans × OC)
{Haphazardly edited} -
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It was bright. Too bright, what had just happened? Flickers of memories passed through Sans’s mind in a whirl. “Doctor Gaster!” He heard a faint scream. It was muffled under his own screaming of his mind.
“Someone get the kids out of here!” Another voice said. The bustle around him felt as if it was going in slow motion. The colors faded from his vision as he collapsed onto the floor.
“Brother! Wake up!” A small voice peeped. Sans felt his consciousness fade. The nausea he felt was too strong, and he welcomed the darkness.OR
Sans is left to care for his rambunctious younger brother Papyrus, his health suffers as a result of overworking. On top of that: memories of the past plague his dreams. Sans must work to overcome his trauma while also allowing himself to be supported by those who care for him. Tags to be updated as chapters are released.
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Flash Fics for Z1pperZoomin by Mochimunchies for Z1pperZoomin
Fandoms: Undertale (Video Game)
25 May 2025
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Summary
A short collection of flash fics/oneshots written for ZipperZooms!
Includes:
Chapter 1 - Paperjamcentirc
Chapter 2 - Bad Sans Poly (Robot AU)
Chapter 3 - Dream and Nightmarecentric
Chapter 4 - Errink (Feral AU)
Chapter 5 - Freshcentric (Mer AU)Series
- Part 9 of Flash Fiction Giftfics
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If Sans and Papyrus had a mama...
Series
- Part 5 of (UT) Slow Works...
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Short story consiting Paperjam and Gradient meeting their new baby half brother, Palette Roller. Left alone, they have to take care of him for a short moment which ends in a sweet realization.
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- Part 2 of Happy Drink Family Short Stories
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A couple stories showing different moments from W. D. Gaster and his sons' past. Giving the backstory of how Sans and Papyrus came to be, and of how Gaster sustained one of his more significant injuries—a situation that left more than just himself traumatized.
More scenarios to be written as the ideas come to me!
(Chapter One retcon coming on December 27th)
Series
- Part 1 of Freedom AU Spin-Offs
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Cosas que quiero escribir ya, pero por la narrativa no puedo aún: Ya aquí by Frikisbits231
Fandoms: Undertale (Video Game)
18 Apr 2025
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Summary
¡Hola!
Esta nueva obra me servirá para poder escribir–lo que dice el título– y agregar dibujos que se me ocurrieron al momento, para mi serie de "Desplazamientos (forzados) en el multiverso" y en general los fanfics qué hay en ellas.
- Genocidio perdido en el multiverso.
- Las (Des)Aventuras de (After)–"Sans".
- Gemelo negativo: Lejos del árbol de mamá.
- Código espacial estrellado (Aka: Outer sin Tale)
- (y probablemente más, fanfics que todavía no escribo).¿Actualizaciones? Todavía no tengo días fijos.
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When an unfinished sketch escapes its universe and follows the intended script, a Creator manages to save its broken soul at the last moment. Not willing to let something so precious go to waste, they decide to encode the soul into the very fabric of existence.
Meet the soul of the multiverse—an Ink with a soul but no body to control. A being existing in a fragile state between universes
How will the worlds and those within them react to the life existing beyond the naked eye? How will the respective sides of the balance handle this knowledge? Will the rules of the game change, or will the script remain the same?
Series
- Part 4 of Balancing Cycle of Skeletons
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Little one shot for the Babybones universe! Alphys and Undyne make a discovery
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- Part 2 of Babybones Universe
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After an incident in Waterfall where Sans failed to hold himself in battle, Gaster-in his fatherly concern-decides that the only way to protect his son is by teaching him how to DODGE!