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Pen Your Pride
The Demon Inside of Me (Grillby X Reader)

The Demon Inside of Me (Grillby X Reader)

78.3K Reads 3.8K Votes 45 Part Story
Pippin By bananahfart Completed

A long time ago, monsters and humans lived peacefully. Then, war broke out. 
    The monsters were forced underground, and the humans were left above.
    A killing machine was created, to destroy all the monsters in the underground.
    This is her story.
     Asgore is the prince, who lives in the palace with his father (Nazur) - who is on the edge of death - and his wife (Toriel) and son, Asriel. Toriel and Asgore are about 20. Gaster and Grillby are buddies around 19. Sans and Papyrus have no set age, they're experiments. If they did, they would be 17 or 18.
    Reader-chan is 18.

  • completed
  • fluff
  • fluffy
  • grillby
  • papyrus
  • sans
  • undertale
SmolScaredBoi SmolScaredBoi Jan 01, 2017
Wait, i THINK Sans is 18 and Paps is 13... Notice i got this from fan-art and i didnt bother to look it up cause im lazy
Kylee_Whiting Kylee_Whiting Jul 12, 2016
I read the authors note and was all like "awe yeah Thu  is gonna be such an amazing story!" And then I read this and I went o-o XD
persononline1324 persononline1324 Nov 17, 2016
Who are San and Papyrus expirement of? If gaster is 19 and sans and pap are 17-18 were they created by a 1 year old gaster?
dungusmcbungus dungusmcbungus Apr 11, 2016
(casually scrolling through Undertale fanfiction)
                              (Sees this title)
                              (quickly clicks it and goes to get popcorn)
                              This is going to be great~