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1. Red petals by ThreeGeeseInATrenchcoat

   Fandoms: Deltarune (Video Game), Undertale (Video Game)  

   • Not Rated
   • Creator Chose Not To Use Archive Warnings
   • Other
   • Complete Work

   09 Sep 2025

   Tags

   • Creator Chose Not To Use Archive Warnings
   • Deltarune Player/W. D. Gaster
   • W. D. Gaster/Reader
   • corestrings
   • W. D. Gaster
   • Deltarune Player
   • Hanahaki Disease
   • Scientist W. D. Gaster
   • Corestrings - Freeform
   • One Shot
   • Short One Shot
   • Gaster is down bad
   • Author Is Sleep Deprived
   • Possible Character Death
   • W. D. Gaster-centric
   • Weird W. D. Gaster

   Summary

   Gaster was unable to die, but that didn’t stop the roots from growing in his chest. Day by day he spat out more crimson red flowers.

   OR
   Gaster gets hanahaki disease

   (Short one shot)

   Language:

   English

   Words:

   324

   Chapters:

   1/1

   Comments:

   7

   Kudos:

   156

   Bookmarks:

   8

   Hits:

   978