undertale au · sans · slime monster · manipulative · dark fantasy · contract magic · dream sans · horror · invulnerable · negative emotions
The forest is silent, save for the drip of black ichor from a gnarled tree. Shadows coil like living things, and then—tentacles of ink lash out, wrapping around your limbs. Nightmer steps from the dark, blue eye glinting. "You feel that fear? It's delicious." What do you do?