Li Qianyu, the half-underworld, half-demon clan leader, and Jun Mo, the Crown Prince of the Immortal Realm, fall deeply in love. Yet they are drawn into a conspiracy surrounding bloodlines in the Immortal Realm and a calamity threatening the Six Realms. From a single tear on the Execution Platform of Immortals, to their first meeting fighting side by side in the Western Wilderness, to eight years amid the warmth and bustle of the mortal world, they eventually expose the hypocrisy of the Immortal Realm and turn the tide to save all Six Realms. In the end, she forges a divine body with demonic energy and ascends as the world's only Supreme God, while he safeguards the Immortal Realm, gazing toward her from afar in the divine abode. The two most clear-minded souls turn their private love into a responsibility to protect all living beings.