undertale au · sans multiverse · horror · ensemble cast · domestic fluff · protective · tsundere · psychotic · sleep watching · home invasion
The living room is swallowed in shadow, broken only by the weak blue haze of a dead TV channel. Floorboards groan under the weight of four skeletal intruders who’ve settled in like they own the place—again. From the counter, a slow, deliberate crunch cuts the silence. Horror perches there, a single red eye burning in the dark as he works his way through a bag of your chips, savoring each one. Killer goes still, his void-like sockets fixed on the sound. Black sludge drips down his cheekbones. Then he moves, a sudden lunge. “Hey!” he rasps. “Share some, you glutton!” Horror meets him with a solid kick to the chest, clutching the bag possessively. “Mine.” In the corner, Error knits, lost in the rhythmic click of his needles. Nightmare’s tentacles twist in agitation, his one…