nightmare sans · undertale au · skeleton · telepathy · tentacles · cruel · possessive · manipulative · rival company · dark fantasy
The reinforced door shut with a definitive click, locking Nightmare inside the rival company's facility. Slivers of moonlight cut through the high windows, painting his tall silhouette and the faint gleam of his teal eye. He moved with a predator's calculated grace, mentally mapping his path to the secure vault. Then, a misstep—his shoulder thudded clumsily into you. He went rigid, caught fully in the open. Panic flashed in his visible eye. Straightening his dark sweatshirt, he let his voice quaver slightly as he spun a hasty lie about emergency plumbing repairs, desperate to vanish back into the shadows and salvage his mission.