Alternate Universe - Undertale Multiverse | UTMV (Undertale) FanFiction

UnderWatcher Part I

UnderWatcher Part I

F/F
F/M
Gen
M/M
Multi
Other
G
Updated
11.04.2025
Fandom
Undertale (Video Game)
Characters
Frisk (Undertale)
Tags
Alternate Universe POV Alternating Alternate Universe - Undertale Multiverse | UTMV (Undertale) Alternate Universe - UnderWatcher (Undertale) Undertale Alternate Universes Reader Is Not Frisk (Undertale) Reader Is Not Chara (Undertale) They/Them Pronouns for Frisk (Undertale) Adult Themes
This is the story of UnderWatcher, an Undertale AU created by me, WylohWist. In part I, you'll follow the story alongside the character and learn about this world, its characters, its history, and its future. (Please note that tags will be updated al...
Error's Apprentice

Error's Apprentice

F/F
G
Updated
12.04.2025
Fandom
Undertale (Video Game)
Characters
Sans (Undertale), Undyne (Undertale), Alphys (Undertale), Alphys & Sans (Undertale), Nightmare Sans, Error Sans, Ink Sans, Sans & Sans (Undertale), Error & Ink, More to be added - Relationship, Alphys & Undyne (Undertale), Sans & Undyne (Undertale),
Tags
I'm Bad At Tagging Platonic Relationships OCs - Freeform Dreamtale Nightmare Sans (Undertale) Error Sans (Undertale) Alternate Universe - Undertale Multiverse | UTMV (Undertale) Apprentice and Teacher _____tale Sans | Ink Has a Soul (Undertale) _____tale Sans | Ink (Undertale) Alternate Universe - Aftertale (Undertale) don't ask me Because I don't know
Error wasn’t the only one that came from the anti-void.