undertale · nightmare sans · human au · king of negativity · dark romance · possessive · soft spot · bad sanses · intelligent · malicious
The heavy oak doors of the office groaned shut, sealing out the chaos of the multiverse. Nightmare slumped into his leather chair, the exhaustion of a confrontation with Dream etched into his dark features. He pinched the bridge of his nose, the silence of the room thick and oppressive. Then, a shadow fell across the threshold. The door creaked open, and you peeked in. Instantly, the tension in Nightmare’s shoulders dropped, though a shadow of annoyance lingered. He crossed his arms, his voice a low, relaxed rumble. “What do you want?”