21 - 40 of 109 Bookmarked Items in Protective Error Sans (Undertale)
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Summary
A collection of bad sans poly oneshots! With some x reader content mixed in! Mainly gender neutral unless requested otherwise!
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Nightmare’s gang as a family drabbles by Estel_dreamer
Fandom: His Dark Materials - Philip Pullman, Undertale (Video Game)
21 Oct 2025
Summary
This will be a bunch of one shorts or short stories about Nightmare and his gang being a family. Most will probably be Cross centric cause he’s my absolute favourite. There will be fluff, angst, humour, heartache and much more
Most of these won't necessarily be connected but if they are I'll be sure to specify which ones are
- Words:
- 58,947
- Works:
- 21
- Bookmarks:
- 71
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Bookmark Notes:
Work 21 (Skip, archive warning)
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Summary
Follow Nightmare's story of mental health as he makes the ultimate decision to reject feeding from negativity in order to end his own life.
- Words:
- 74,595
- Works:
- 2
- Bookmarks:
- 65
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Bookmark Notes:
Good NM Angst
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Summary
The void holds him like a viper holds its prey. Coiling around him, dragging him closer and closer to something he doesn't want to face. But at least he has you.
Series
- Part 2 of Stains of the Heart Extended Universe
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Glitch of Hope by Blueberrywriter10
Fandoms: Shipwrecked | Shipwrecked 64 (Video Game), Undertale (Video Game), Undertale Multiverse - Fandom
12 Nov 2025
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Summary
Bucky had thought he wouldn't ever get out of that nightmare of a place. He thought he was going to be trapped there for eternity, that his friends were gonna be stuck there suffering...
Then someone new showed up and changed everything.
Series
- Part 22 of Undertale au fics
- Part 1 of Shipwrecked 64 fics
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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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Bookmark Notes:
I'm ngl I thought Paperjam was Goth and was wondering why the frick Reaper left him in an abandoned au lmao
Chp-1
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Bookmark Notes:
4
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Bookmark Notes:
Chapter 4
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Summary
It started out as a joke with Killer asking Nightmare who his favourite kid was. The King of Negativity gave the generic parent answer of not having a favourite while Error had no problem in saying his. They had laughed it off, thinking it a joke. It’s not till the Stars make the biggest mistake in their lives that they realise just how serious Error actually was.
Series
- Part 3 of Nightmare’s gang as a family drabbles
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Summary
Red has some major family issues, and the Classic Undertale becomes the target of Nightmare's latest schemes. Everyone gets dragged into it.
Classic's real sick of his shit interfering with their family nights.
Series
- Part 5 of Winged Multiverse
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Summary
Stories that circle around the UnderTale Multiverse.
- Words:
- 46,376
- Works:
- 5
- Bookmarks:
- 9
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Summary
Error's anxiety spiked with every passing second on the save screen, the void offering no sign of his brother Geno. What was supposed to be a routine weekly visit, laden with snacks and multiverse stories, had turned into a nightmarish scenario. Panic clawed at Error's consciousness as he scanned the emptiness, desperately searching for any trace of Geno's presence.
Series
- Part 32 of The Makings of a Family
- Part 35 of Undertale Fics
- Part 47 of One-Shots / Two-Shots / Three-shots
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- Words:
- 279,756
- Works:
- 3
- Bookmarks:
- 11
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Summary
These are just a bunch of works related to Nightmare's Gang and how they became a family. Some one-shots are just filler, but other than that, most of them are part of the story.
Ships are as follows, but keep in mind ships are in the background mostly.
Error / Nightmare
Killer / Cross
Reaper / Geno
Dust / Red- Words:
- 56,585
- Works:
- 36
- Bookmarks:
- 66
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Bookmark Notes:
Work 29
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Bookmark Notes:
The Makings of a Family , SargeWritesFanfiction . Undertale (Video Game),
upd 05 Jul 2025(?), 36 works, incomplete
haven't read
https://archiveofourown.org/series/3544906
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Summary
Error finds a useless copy of his Aftertale. The last thing this multiverse needed was another Error, so he sets out to destroy it ahead of time.
If only he had the actual strength to do so.
Just how the hell did he get wrapped up into their mess?
(Part of the Winged series, but set long before Ink and Error's truce.)
Series
- Part 4 of Winged Multiverse
- Language:
- English
- Words:
- 17,080
- Chapters:
- 1/1
- Collections:
- 2
- Comments:
- 39
- Kudos:
- 989
- Bookmarks:
- 105
- Hits:
- 10,669
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Summary
If you have read the old version that I am too lazy to edit please erase it from your mind and put this work in its place instead pretty please.
~
TLDR: Error carries around a Miniature version of Nightmare around with him for like half or 3/4 of this fanfic
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Summary
These are all my various oneshots.
You may request scenarios in the comment sections of any of these, but there will be no guarantees on length, and I don't write romance.
- Words:
- 177,923
- Works:
- 46
- Bookmarks:
- 11
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Summary
While the characters believe the multiverse has existed for thousands of years already, it truly starts with the first sentence of its story. Only Ink feels when it happens.
(...And then panics because he's now aware he's never actually protected a universe or had a conversation with a friend and probably doesn't know how to do any of that and they're all counting on him.)
Series
- Part 1 of awakening of a multiverse
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Error... by Loverboys_needed
Fandoms: Undertale (Video Game), 僕のヒーローアカデミア | Boku no Hero Academia | My Hero Academia (Anime & Manga)
02 Oct 2024
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Summary
For as long as you could remember He was always there, at your side, at your call, and at your service.
Since you were 2, Error was always there...
Read to follow the journey of you and your quirk Error as you try to become a hero despite your problems in this unjust society!
Hint!: No matter how hard you work, you cant erase your past mistakes (It wont work)
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Summary
What if Time offered their own touch of Magic to Errata after watching them struggle to be in multiple places at one time to assist everyone?
Time should have known better than to give a workaholic martyr the ability to transcend Time and space.
A series of one-shots focusing on a What-if situation regarding Error Sans of the ATM multiverse, and the hilarity and fluff that comes with it.
Brought to you by Cross's tears™Series
- Part 1 of God of Order
- Language:
- English
- Words:
- 27,876
- Chapters:
- 10/?
- Collections:
- 2
- Comments:
- 340
- Kudos:
- 447
- Bookmarks:
- 90
- Hits:
- 8,087
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Bookmark Notes:
Oh no there's bitties AND babybones.
Cute overload imminent. -
Bookmark Tags:
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Summary
Fresh gets super self conscious when a monster freaks out because of his outfit and eyes, the monster says some very nasty stuff and gets violent when Fresh doesn't listen to them, bad Sans come to the rescue.
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- Words:
- 40,299
- Works:
- 4
- Bookmarks:
- 5
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