1 - 20 of 104 Bookmarked Items in Protective Error Sans (Undertale)
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Summary
Error and the Stars just noticed Ink had been missing for a few days. He either forgot he had places to be, as per usual, or he got himself into trouble once again.
Error plans on finding out, even if it means storming Nightmare’s castle himself.
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this author is so mean to my feelings i love them
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sweetiessss
errorink but like. its good
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The Makings of a Family by SargeWritesFanfiction
Fandom: Undertale, Undertale (Video Game)
05 Jul 2025
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:
- 64
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Summary
”The fuck do they mean ‘Sell you’? What the hell?” Killer snapped, his soul twisting in his mounting agitation. Horror growled low, eyesockets narrowed while Nightmare and Error trembled with rage. It’s Dust that puts the pieces together and asks the dreaded question.
“Cross…were you a child bride?”
The question hangs heavy in the air, no one daring to even breathe. Nightmare and Error are hoping beyond hope that Cross will denying it, that their youngest hasn’t been subjected to such atrocities. Their souls break when Cross gives a small miserable nod.
Series
- Part 21 of Nightmare’s gang as a family drabbles
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That Time Blue Boned The Destroyer of Worlds by Mochimunchies
Fandom: Undertale (Video Game)
22 Dec 2024
Summary
Blue thought he had a pretty magnificent life. He had the bestest ever friends in Dream and Ink (even if the two sometimes still needed some guidance as to how living with mortals work), an amazing brother who he loved and respected very much (even when Honey could still be silly about a few things), and best of all, a datemate whom he loved very, very, very much..! Even if they had to be discreet about their relationship.
At least, until one night of passion and poorly managed intent had left them with something that they couldn't be discreet with.
As he prepares to take responsibility for his actions and dedicate himself to a domestic life with his beloved mate-to-be, Blue is faced with only one question:
How does he break it to his friends and family that he knocked up the Destroyer of Worlds?
- Words:
- 28,419
- Works:
- 6
- Bookmarks:
- 57
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Summary
He raised his head with difficulty. His eyes widened in surprise. In front of him was a portal, as glitchy as he himself, and he could see a dark sky with stars.
Error extended his hand and it easily passed through the portal and on the other side a light breeze blew across his fingers. It seemed that strength suddenly filled his body, and the magic responded with warmth and he literally jumped into the portal, turning out to be on an island that flew among the stars.
A surprised sigh escaped him before he sank down again, but now it was no longer the white empty floor of void, but I was soft, cool grass.
Stars, how he loves it here. This place is much better than anti-void.
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12
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Bookmark Notes:
Chapter 12
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Summary
Despite what he told the rest of the multiverse, what he had tried to tell himself, Error wasn’t nearly as against Soulmates as he pretended to be. You were perfect, his Star, only his. And he was finally ready to meet you.
Series
- Part 1 of Soulmate Au
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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
This fic is more of a what if situation. What if instead of Nightmare taking Cross in, Error ended up doing that? How different would things be?
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Error watches, unflinching, as the skeleton's giant knife materializes, slicing through the stillness of the void. The vibrant glitches around his fingers pulsate more vividly in response, mirroring the tension. Despite the display of power, Error’s demeanor remains composed, almost amused by the dramatic reaction.
"You can call me Error. As for how I arrived here," he gestures loosely around them with a hand threaded with glitches, "I travel where the code calls, where anomalies beckon. Where the multiverse needs cleaned of anything that could harm it, and this place," he pauses, glancing around the stark whiteness, much like his own home, "Screamed for attention."
His gaze settles back on Cross, the colorful chaos of his form stark against the void. "You, however, are an interesting anomaly. Fighting so fiercely, clinging to existence in a world that has seemingly been erased." Error hummed, eyes still searching.
[[[ Slow Updates ]]]
Series
- Part 45 of Undertale Fics
- Part 5 of Roleplays
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Chapter 6
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6/?
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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:
- 443
- Bookmarks:
- 91
- Hits:
- 7,892
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Oh no there's bitties AND babybones.
Cute overload imminent. -
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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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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.
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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:
Chapter 4
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💖💖💖💖
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Hey, Never Forget My Face, The Fact That I Remain by PerpetuallyTired_PT
Fandoms: Undertale (Video Game)
18 Jan 2023
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Summary
“i won’t le-et you make this m-m-mistake!”
“this isn’t a mistake!”
“it wi-i-ill blow up in your f-face!”
“you don’t know that!”
“yes i-i do you fu-ucking idiot! i know because no-o one stopped me!”One Error is more than enough…
- Language:
- English
- Words:
- 1,529
- Chapters:
- 1/1
- Collections:
- 1
- Comments:
- 17
- Kudos:
- 267
- Bookmarks:
- 48
- Hits:
- 1,919
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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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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:
- 69
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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:
- 38
- Kudos:
- 980
- Bookmarks:
- 104
- Hits:
- 10,494
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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
Nightmare has grown weary of the constant strife between himself and his brother. Every time he manages to fuel the ever-persistent need for negativity in his system, Dream and his friends immediately sap it out of him.
So, Nightmare has decided he was done. If they believed the multiverse was better without negativity, he was okay with that. He'd well descended past apathy years ago.
Series
- Part 1 of Appleverse
- Language:
- English
- Words:
- 41,282
- Chapters:
- 14/14
- Collections:
- 4
- Comments:
- 658
- Kudos:
- 1,374
- Bookmarks:
- 248
- Hits:
- 22,136
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Bookmark Notes:
i just want to see dream and nightmare ruin each other in the most painful of ways and this is pretty much exactly what i asked for
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NIGHTMARE NOOOOOOO DONT KYS PLZZ YOU NEED TO RAISE UR BOYS
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One of the best dadmare story's that I have ever read!!😍🤩
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- Words:
- 40,299
- Works:
- 4
- Bookmarks:
- 5
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Summary
Undertale Multiverse where the Sanses know each other, but with wings. Wings are an extension of a monster’s soul and are typically used as a form of expression or fighting.
Some of the AUs will not have wings, though, since they are technically alternate universes and can be made without them.
Series will consist of (probably) one-shots surrounding the characters, and I’ll probably take suggestions after the first two stories are done. Just because I make a character or relationship one way doesn’t necessarily mean I won’t write something else entirely if I like it, it just won’t be “canon” to the series.
(〜￣▽￣)〜- Words:
- 129,084
- Works:
- 10
- Bookmarks:
- 297
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Bookmark Notes:
i had the greatest time reading this. multiverse travel and drama and meetups ahhh my favorite shit ever
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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.
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TLDR: Error carries around a Miniature version of Nightmare around with him for like half or 3/4 of this fanfic