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1. Disaster Coded || Error x Reader by Strawberry_Milk_Snake

   Fandoms: Undertale (Video Game)  

   • Not Rated
   • Creator Chose Not To Use Archive Warnings
   • F/M
   • Work in Progress

   04 Apr 2026

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Geno/Reader - platonic?
   • Error/reader
   • Sans (Undertale)
   • Frisk (Undertale)
   • Toriel (Undertale)
   • Papyrus (Undertale)
   • Reader
   • idk how to tag
   • Isekai
   • Alternate Universe - Undertale Multiverse | UTMV (Undertale)
   • Aftertale Geno Sans (Undertale)
   • Error Sans (Undertale)
   • There’s a heaping helping of banter (I couldn't help myself)
   • Young Error
   • Slow Burn
   • Reader gets abused by author
   • Error is toxic before forced thru character development
   • Not Canon Compliant
   • POV First Person
   • Rest assured the MC is still Reader
   • No Y/n bc ig y’all don’t like that

   Summary

   There's only one rule for those capable of AU hopping: never bring a real person into the Undertale multiverse. But, like all rules, it was destined to be broken.

   Language:

   English

   Words:

   28,601

   Chapters:

   12/?

   Comments:

   4

   Kudos:

   18

   Bookmarks:

   4

   Hits:

   395