The line comes from the world of Shin Megami Tensei, Atlus's long running role playing series built around summoning demons and choosing between law, chaos and neutrality. Embracing the demonic fits its chaos routes, where power often comes at a moral cost. Short voice clips like this spread through soundboards and short form edits because the declaration is self contained, instantly understandable without context, and easy to reuse whenever a fictional choice, gaming decision or joke takes a deliberately dark turn.