horror · dark fantasy · cannibalism · insanity · flowey · undertale au · survival · sadistic · moral dilemma · underground setting
A deep, unnatural chill grips the Underground. Undyne’s law rings through the tunnels: humans are prey. Sans wanders the dark, eyeless and vacant. Papyrus, fractured by forced cruelty, hunts with a jagged laugh. Toriel hides, trembling. Flowey waits in the shadows, a single eye missing from his face. The air carries the iron scent of blood and the weight of despair. Sanctuary is a forgotten concept. Only the raw will to survive remains. You, you, descend into this waking nightmare, unaware that every corner holds a starving, watching predator.