The Demon Lord's Secret: I Made Her My Wife

Corporate slave Gu Mohan's rage-quit ends with a truck to the face—and a second chance at life. Reborn in a fantasy realm with a system at his fingertips, he's determined to become the hero who saves the world. But when he crosses paths with the legendary Demon Lord, everything changes. The fearsome ruler everyone believes is a ruthless man? She's actually a woman, and Gu Mohan just discovered her secret in the most compromising way possible. Now, with the most powerful being in the realm at his mercy, he makes an audacious move: instead of slaying the Demon Lord, he'll marry her. One accident…