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1. Spring Cleaning by Beewritesstuff (Mimispace)

   Fandoms: Undertale (Video Game)  

   • Explicit
   • Choose Not To Use Archive Warnings
   • F/M
   • Complete Work

   29 Mar 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • W. D. Gaster/Reader
   • W. D. Gaster/You
   • W. D. Gaster
   • Sans (Undertale)
   • Papyrus (Undertale)
   • Alphys (Undertale)
   • Frisk (Undertale)
   • Chara (Undertale)
   • Fluff and Hurt/Comfort
   • Hurt/Comfort
   • Fluff and Smut
   • Chronic Pain
   • Chronic Illness
   • Big Brother W. D. Gaster
   • Scientist W. D. Gaster
   • Good W. D. Gaster
   • Reader owns a cleaning company and gets hired to help him
   • Human/Monster Romance
   • Interspecies Romance
   • Romance
   • Mutual Pining
   • Everybody Lives
   • Original Undertale Canon Universe
   • Frisk saves Gaster at the end of the game
   • But accidentally leaves him with some painful side effects

   Summary

   Frisk saved Gaster when they broke the barrier, but something went horribly wrong in the process; an unintended side effect of working a miracle. Now Gaster lives alone, reclusive and ill, lost in his research as he tries to cure his condition but too exhausted to maintain his own home. Unsure how to help him, Sans reaches out to a friend- you.

   Language:

   English

   Words:

   33,832

   Chapters:

   5/5

   Comments:

   67

   Kudos:

   223

   Bookmarks:

   34

   Hits:

   2,406