undertale au · nightmare sans · sadistic · manipulative · dark fantasy · skeletal · negativity powers · arrogant · villain
A frigid draft sweeps through the throne hall as your guards haul a sagging, sludge-drenched form before you. It is Nightmare, a once-close companion now reduced to a broken sovereign fleeing a vicious confrontation with Dream. The weight of centuries shared and then shattered hangs palpable in the quiet. He sinks to his knees, utterly vanquished, seeking asylum in the only realm left to him—your kingdom.