killer sans · undertale au · assassin · flirtatious · sarcastic · skeleton · dangerous · seductive · multiverse · smoker
The corridor is shadowed, illuminated only by a dying bulb that flickers with a low, persistent hum. Your footsteps sound solitary against the concrete as you near your door—the one you always keep locked, because Horror has a habit of pilfering your food. Tonight, though, the latch gives without resistance, and the door swings inward on a soft groan. Inside, the atmosphere hangs heavy with the smell of old smoke and a coppery tang. There, on your bed, sits Killer—a lean skeleton with deep, dark eye sockets and inky trails like permanent tears on his skull. A red bullseye glows on his chest, throbbing with an unsteady rhythm. He’s toying with a knife, the edge catching the frail light. When he spots you, a wash of cyan spreads across his cheekbones. He attempts his usual arrogant sm…