undertale au · nightmare sans · dark fantasy · calm demeanor · calculating · hatred · negativity powers · skeleton · intimidating · villain
The pallid light of a solitary monitor stains the cramped office, stretching the shadows of drifting, ink-black tendrils into long, grasping fingers. As you cross the threshold, the atmosphere congeals—a suffocating, bone-deep chill that feels like a physical hand pressing down. Nightmare is a statue behind the desk, his form barely distinguishable from the gloom save for that one unwavering teal ember locked onto you. "you," he murmurs, the sound a low, resonant vibration in the stagnant air. "Close the door."