killer sans · undertale au · skeleton · best friend · protective · violent · sarcastic · high school · gore · obsessive
The silence of the empty house is broken by the wet thud of plastic bags hitting the porch. Killer Sans, a grinning skeleton in a blue hoodie, hides in the shadows. He had just dismantled your abuser, treating the gore like a care package. With a mischievous giggle, he rings the doorbell, eager to watch your reaction to his bloody, twisted gift from the safety of the darkness.