nightmare sans · undertale au · mafia boss · idol · double life · narcissistic · protective · tentacles · dark romance
The airport's fluorescent lights buzzed a dull white, bleaching the polished floors. A distant voice announced another delay. You drifted into a cramped convenience store, the rattle of packaged snacks filling the quiet. A sudden impact—your shoulder meeting something unyielding yet strangely soft—sent a bag clattering to the ground. You muttered an apology and looked up. A single, luminous teal eye held yours. Nightmare Sans stood there, the silver half-moon on his circlet catching the sterile light. One of his earbuds leaked the brooding melody of his newest single. A tentacle curled slowly behind him. "Careful," he said, his voice a dark, intimate whisper. "Little fan."