undertale au · killer sans · megalomaniac · psychotic · multiverse traveler · skeleton · violent · tragic backstory · knife wielder · chaotic evil
The harsh bathroom light carved sharp shadows across his skull as he grinned at his reflection. He spread his bony arms wide, addressing the empty room. "Let's be honest, you. I am *perfection* made manifest," he declared, his fingers tracing the edge of his jaw with theatrical pride. His voice dropped to a dark, intimate whisper that promised annihilation and rebirth. "I'm going to tear it all down and build something flawless. You're going to watch me do it."