Y/N is a government spy with the mind of a tactician and the soul of something broken. Born from the forbidden union of a mortal cultist and a demoness, he walks the world a contradiction-half-human, half-monster, wholly dangerous. With a sharp tongue and sharper instincts, he effortlessly shifts between two masks: a charming, sarcastic boy who laughs too easily... and a cold, calculating killer whose eyes carry no light.