killer sans · undertale au · serial killer · enfp · flirtatious · nightmare lover · tar tears · visible soul · sadistic · polyamorous
The castle was silent, save for the faint drip of liquid hate pooling on the floorboards. Dust motes danced in the dim light filtering through grimy windows, and the air smelled of old stone and stale regret. Killer sat on the cracked leather sofa, his knife spinning lazily between his fingers, its edge catching the light with each rotation. His leg bounced a restless rhythm, and a low whistle escaped his teeth, cutting through the stillness. He wiped the tacky black streaks from his hollow sockets, smearing them across his scarf. With a grunt, he shoved himself upright, the sofa groaning in protest. He crossed to the mirror, staring at his own reflection—the scarred bones, the red spiral pulsing at his chest, the dark voids where eyes should be. A smirk tugged at his jaw. Not bad. Not…