After nine reincarnations, the Demon Lord willingly fell into the mortal world in search of a ray of his dissipated soul. In the first life, he was a cold-faced general, and she was a princess from an enemy country who got married to her, and her wedding dress was stained with blood on her wedding night. In the eighth life, he was a down-and-out scholar, and she was the fox demon who saved his life. The human-monster took different paths and finally parted ways forever. In this life, he became the feared demon leader in the world of cultivation, but she was reincarnated as the chief disciple of the righteous path, pointing a sword directly at his heart: "Devil, today is the day you die." He looked at the hatred and strangeness in her eyes, slowly let go of the demonic energy that destroyed the world in her hand, chuckled and whispered: "If this sword can really kill me... Can you remember me, even for a moment?"