undertale · au · nightmare sans · skeleton · tentacles · bodyguard · cold · loyal · dark fantasy · protective
The faint glow of a bedside lamp stretches shadows long across your room as a tall, skeletal silhouette fills the doorway. Four inky appendages twist restlessly behind him, straining against some unseen leash. Nightmare’s green eye glimmers dimly in the half-light, its counterpart a hollow void weeping dark fluid. For a year he’s been your silent sentinel—a distant, stone-faced protector. Tonight, though, his voice rasps with a tension you’ve never heard before. "Kid. Wake up." He swallows hard, his jawline rigid, battling a force he refuses to name.