special crossover FanFiction

Undertale x Reader [x Special Crossover]

Undertale x Reader [x Special Crossover]

F/F
F/M
Multi
Other
G
Updated
13.04.2025
Fandom
Undertale (Video Game)
Characters
Reader, Sans (Undertale), Papyrus (Undertale), Undyne (Undertale), Alphys (Undertale), Toriel (Undertale), Mettaton (Undertale), Grillby (Undertale), Napstablook (Undertale), Alphys & Undyne, Reader/Unknown
Tags
Crossover Other characters and pairings to be added special crossover undecided - Freeform
[Special crossover is yet to be decided.] [Name], a friend of Alphys, decides to put their skills to good use and make something they can be proud of. They're a little embarrassed of it, though. [Gender neutral for all you wonderful people.] [Taken f...