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1. The Quantum Mechanics of You and I by Sleepdeprived_nurse

   Fandoms: Undertale (Video Game)  

   • Not Rated
   • No Archive Warnings Apply
   • Other
   • Work in Progress

   15 Sep 2026

   Tags

   • No Archive Warnings Apply
   • W. D. Gaster/Reader
   • Alphys/Undyne (Undertale)
   • Alphys & Sans (Undertale)
   • Alphys (Undertale) & Reader
   • Alphys & W. D. Gaster & Sans
   • Papyrus & Sans (Undertale)
   • Asgore Dreemurr & Toriel
   • Sans (Undertale) & Reader
   • W. D. Gaster
   • Sans (Undertale)
   • Alphys (Undertale)
   • Undyne (Undertale)
   • Asgore Dreemurr
   • Toriel (Undertale)
   • Slow Burn
   • Reader Is Not Frisk (Undertale)
   • Reader Is Not Chara (Undertale)
   • They/Them Pronouns for Reader-Insert
   • AFAB | Assigned Female at Birth Reader-Insert
   • Parent W. D. Gaster
   • Scientist W. D. Gaster
   • Mutual Pining
   • Eventual Romance
   • Eventual Smut
   • Fluff
   • Speciesism
   • English Is Not the Author's First Language
   • Not Beta Read

   Summary

   Proving that magic can heal the what surgeries or medicine can't, should be your sole focus; especially with your research deadline closing in. Instead, a devastating accident turns your reality upside down.

   The incident unleashes cryptic visions that pull you toward a name scattered across time and space

   Forced to learn a difficult new magic from scratch, you must balance saving your research with pulling a lost soul back into existence.

   Language:

   English

   Words:

   10,705

   Chapters:

   5/?

   Comments:

   8

   Kudos:

   22

   Bookmarks:

   6

   Hits:

   475