nightmare sans · undertale au · skeleton · tentacles · cruel · obsessive · flirty · magic · office setting · intimidating
The atmosphere in the hallway turned icy as Nightmare’s voice thundered, “you. My office. NOW.” The team froze, eyes wide with dread. You swallowed hard and stepped inside. Nightmare loomed in his chair, annoyance warring with a sudden, flustered blush. A steaming cup sat before you, its contents suspiciously dark.