∆°{The Darkest Souls}°∆ | Gaster x Reader

When the monsters were sealed in the Underground, a few humans, still loyal to monsterkind, went with. (Y/N) Was one of them. She was a Scientist, one of the most brilliant minds of the monster world, and ended up working alongside the Royal Scientist. W. D. Gaster. And, despite her knowing better, began to grow attac...