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1. Public Bookmark 9

   Soulmate Au by LavenderInTheLimelight

   Fandom Undertale (Video Game)

   • Teen And Up Audiences, Mature
   • Graphic Depictions Of Violence, Major Character Death
   • F/M, Gen
   • Series in Progress

   25 May 2026

   • Graphic Depictions Of Violence
   • Major Character Death
   • Sans (Undertale)/Reader
   • Error/reader
   • Fresh/reader
   • Swad/Reader - Relationship
   • swad & swan
   • Error (Errortale)
   • Reader
   • Ink (Inktale)
   • Undyne (Undertale)
   • Fresh Sans
   • Sans (Undertale)
   • swap sans
   • Original Male Character(s)
   • Swad - Character
   • Swan
   • Ink - Character
   • Blue
   • Nightmare - Character
   • Slow Romance
   • Eventual Romance
   • Eventual Happy Ending
   • Kidnapping
   • Hurt/Comfort
   • Slow Burn
   • for reader
   • Error on the other hand
   • needs a fire extinguisher
   • Alternate Universe - Soulmates
   • Soulmate-Identifying Marks
   • Romantic Soulmates
   • Error Sans (Undertale)
   • Forced God of Destruction Error Sans (Undertale)
   • Error Sans Needs a Hug (Undertale)
   • so does reader
   • Protective Error Sans (Undertale)
   • Error Sans Has Issues (Undertale)
   • _____tale Sans | Ink (Undertale)
   • _____tale Sans | Ink Being a Little Shit (Undertale)
   • Other Additional Tags to Be Added
   • Undyne (Undertale) is a Good Friend
   • Outcode Undyne
   • Death Threats
   • Papyrus showed up somehow
   • Papyrus is the Best (Undertale)
   • Sans is Bad at Feelings (Undertale)
   • and puts his foot in his mouth
   • Crack Treated Seriously
   • Fresh Sans (Undertale)
   • Reality Bending
   • This is loosely based on You Can't Run Forever/The Blue Guy by Jim EdLee
   • its hilarious go find it on youtube
   • Road Trips
   • Comedy
   • Furbies
   • Friendship
   • so much slang
   • This Is Not Going To Go The Way You Think
   • Car Chases
   • Forests
   • Fresh is vaguely unnerving
   • Fresh eats souls
   • Parasite Fresh Sans (Undertale)
   • Fresh is also a dork
   • Reader is half convinced she's having a fever dream
   • Concussions
   • Glitter
   • so much glitter
   • Sans is going to have a mental breakdown
   • Fresh treating the multiverse like his own personal playground
   • there are so many different sans's in this
   • I am not listing them all - Freeform
   • Platonic Soulmates
   • Alternative Universe - Swapdreamtale (Undertale)
   • Swapdreamtale Sans | Dream (Undertale)
   • Yandere
   • its Swad
   • Dark Romance
   • Reader's not a good person
   • this is that one pair of psycho's that somehow managed to be at least somewhat healthy together
   • Murder
   • soul eating
   • Does that count as cannibalism?
   • Shapeshifting
   • Reader has all of Corrupt Nightmare's powers
   • Brief mention of the og multiverse
   • somehow i'm going to get fluff in here
   • Fluff
   • Angst
   • Obsessive Behavior
   • Obsession
   • Possessive Behavior
   • Body Horror
   • Dark Comedy
   • Miscommunication
   • Sarcasm
   • reader's a prankster
   • she's a wet cat and Swad is pspsps-ing for his life
   • Kinda Eldritch Reader?
   • she spooky

   Summary

   A series of semi-connected Soulmate Fics

   Words:

   28,185

   Works:

   3

   Bookmarks:

   9

   Bookmarked by Shellowlies

   07 Jun 2026

2. Public Bookmark 12

   Errorberry thingy by FoolishMortality

   Fandom Undertale (Video Game)

   • Teen And Up Audiences, Mature
   • Creator Chose Not To Use Archive Warnings
   • M/M
   • Series in Progress

   03 Aug 2022

   • Creator Chose Not To Use Archive Warnings
   • Sans/Sans (Undertale)
   • Sans (Undertale)
   • Sans Ensemble (Undertale)
   • Error Sans (Undertale)
   • Underswap Sans (Undertale)
   • antivoid
   • Fresh Sans (Undertale)
   • Dreamtale Nightmare Sans (Undertale)
   • Killer Sans (Undertale)
   • _____tale Sans | Ink (Undertale)
   • _____tale Sans | Ink Being an Idiot (Undertale)
   • heat - Freeform
   • error is in heat
   • this is a heatfic
   • Heatfic
   • error is still a little manbaby
   • blue would be 10/10 great partner and error NOTICES
   • error refuses help
   • NSFW ish
   • idk man its kinda wild
   • Hearing Voices
   • Fluff
   • l o t s of fluff
   • Domestic Fluff
   • Nesting
   • my dude out here trying not to pounce on the nearest thing that breaths
   • No beta we die like Geno
   • No Alpha/Beta/Omega Dynamics
   • fuck abo shit i think of heats kinda like periods
   • they come and you cant do shit about them
   • slightly angsty moment in there but dont mind it too much
   • Fluff and Angst
   • Humor
   • Sarcasm
   • everyone wants to talk to error for some reason lol
   • hes pissy with them all
   • Aftertale Geno Sans and Error Sans are the Same Person (Undertale)
   • Error Sans Used to be Aftertale Geno Sans (Undertale)
   • its implied but its my headcannon and i mentioned it ;)
   • Ecto-Genitalia (Undertale)
   • Ecto-Vagina (Undertale)
   • Ecto-Body (Undertale)
   • Ecto-Breasts (Undertale)
   • Alternate Universe - Underswap (Undertale)
   • Alternate Universe - Errortale (Undertale)
   • Error Sans/Underswap Sans (Undertale)
   • Ecto-Tongue (Undertale)
   • Again
   • Smut
   • Fluff and Smut
   • Error Is Error
   • Beta Read
   • HAHAHAH I HAVE NINE PEOPLE WILLING TO BETA READ MY STUFF LETS GOOOO
   • error is a little tsun tsun
   • theyre both kinda ooc but im just rollin with it at this point
   • Oral Sex
   • Dubious Consent
   • Praise Kink
   • yeaaaah error is a little bit ooc
   • i say as i make him even more ooc
   • he's mentioned - Freeform

   Summary

   A heatfic trilogy featuring my errorberry brainrot

   Words:

   6,287

   Works:

   2

   Bookmarks:

   12

   Bookmarked by Shellowlies

   06 Jun 2026

3. Public Bookmark 66

   New Error, who is this? by Philippaki

   Fandoms: Undertale (Video Game)  

   • Not Rated
   • No Archive Warnings Apply
   • M/M
   • Complete Work

   23 Feb 2023

   Tags

   • No Archive Warnings Apply
   • Sans/Sans (Undertale)
   • _____tale Sans | Ink (Undertale)
   • Error Sans (Undertale)
   • Error Sans/_____tale Sans | Ink (Undertale)
   • Dreamtale Nightmare Sans (Undertale)
   • Dreamtale Sans | Dream (Undertale)
   • Error Sans | Error is a Little Shit (Undertale)
   • Multiverse
   • _____tale Sans | Ink Being a Little Shit (Undertale)
   • Comedy
   • Forced God of Destruction Error Sans (Undertale)
   • Aftertale Geno Sans and Error Sans are the Same Person (Undertale)

   Summary

   The balance is broken but a new Destroyer might save them. Now if only they didn't say such worrisome things….but are things truly as they first seem?

   ——-

   All Errors like to cause chaos for their amusement, some just have different ways of showing it.

   Language:

   English

   Words:

   4,826

   Chapters:

   3/3

   Collections:

   1

   Comments:

   27

   Kudos:

   373

   Bookmarks:

   66

   Hits:

   3,981

   Bookmarked by Shellowlies

   06 Jun 2026

4. Public Bookmark 22

   Murder Time Troubles by StrelitziaMystery1097

   Fandom Undertale (Video Game)

   • Not Rated, Mature
   • Graphic Depictions Of Violence, No Archive Warnings Apply, Creator Chose Not To Use Archive Warnings
   • Gen
   • Series in Progress

   04 Mar 2024

   • Graphic Depictions Of Violence
   • No Archive Warnings Apply
   • Creator Chose Not To Use Archive Warnings
   • Sans & Sans (Undertale)
   • Papyrus & Sans (Undertale)
   • Chara & Sans (Undertale) & Original Character(s)
   • Chara & Sans (Undertale)
   • Frisk & Sans (Undertale)
   • W. D. Gaster & Sans
   • Nightmare Gang (Undertale)
   • Sans (Undertale)
   • Sans Ensemble (Undertale)
   • Aliza (Undertale)
   • Chara (Undertale)
   • Papyrus (Undertale)
   • Undertale Player
   • Dreamtale Nightmare Sans (Undertale)
   • Killer Sans (Undertale)
   • Dusttale Sans (Undertale)
   • Horrortale Sans (Undertale)
   • Xtale Sans | Cross (Undertale)
   • _____tale Sans | Ink (Undertale)
   • Dreamtale Sans | Dream (Undertale)
   • Underswap Sans (Undertale)
   • Family Issues
   • Othertale Sans | Color (Undertale)
   • Underswap Papyrus (Undertale)
   • Error Sans (Undertale)
   • Fluff and Angst
   • Hurt/Comfort
   • Alternate Universe - Core Frisk (Undertale)
   • XTale Chara (Undertale)
   • XTale Sans | Cross Needs a Hug (Undertale)
   • Fluff and Crack
   • Crack Treated Seriously
   • One Shot
   • Passive Dreamtale Nightmare Sans (Undertale)
   • Shattered Dreamtale Sans (Undertale)
   • Sad Dreamtale Nightmare Sans (Undertale)
   • Aftertale Geno Sans (Undertale)
   • Dusttale Papyrus (Undertale)
   • Breaking the Fourth Wall
   • Dissociation
   • Cross and Dream are only talked about though
   • Nightmare Fuel
   • The Mindscape
   • Platonic Relationships

   Summary

   One shots and short fics about this trio! None of these fics are really related to each other.
   Nightmare and Cross will show up in some of them.

   Words:

   50,241

   Works:

   21

   Bookmarks:

   22

   Bookmarked by Shellowlies

   06 Jun 2026

5. Public Bookmark 1

   Пока готовится еда by Mayonnaise_Bee

   Fandoms: Undertale (Video Game)  

   • Teen And Up Audiences
   • No Archive Warnings Apply
   • Gen
   • Complete Work

   20 Jul 2023

   Tags

   • No Archive Warnings Apply
   • Error - Character
   • Killer - Character
   • Nighrmare
   • Dust
   • Horror - Character
   • Dream
   • Ink - Character
   • Drabble
   • Explicit Language
   • Humor
   • Comedy
   • Something New Sans | Killer (Undertale)
   • Dreamtale Nightmare Sans (Undertale)
   • Dreamtale Sans | Dream (Undertale)
   • Error Sans (Undertale)
   • _____tale Sans | Ink (Undertale)
   • Bad Sanses | Nightmare's Gang (Undertale)
   • Star Sanses (Undertale)

   Summary

   У Киллера всегда было шило в жопе, которое, если ничем не занять, начинало сильно натирать, заставляя того с вероятностью на все сто процентов натыкаться на неприятности. Поэтому его режим был составлен так, чтобы направлять всю эту активность в нужное русло. Но что если он выбьется из расписания? Всего на пятнадцать минут. Пятнадцать таких долгих ничем не занятых минут.

   Language:

   Русский

   Words:

   1,748

   Chapters:

   1/1

   Kudos:

   3

   Bookmarks:

   1

   Hits:

   37

   Bookmarked by Shellowlies

   06 Jun 2026