On the Earth, a catastrophe triggered the variation of all kinds of species. The superior survived and the inferior were extinct. Under this circumstance, Luo Feng inherited from the owner of Yunmo Star and became one of the three strongest people on the Earth. He lost his flesh during the fight against giant swallowed monster but then he took the flesh of the monster. In the flesh, he developed a human body. Later, he stepped out of the Earth and headed to the universe.

The exceptionally gifted Ghost King, He Simu, unexpectedly encounters the young general, Duan Xu, while out on a break, searching for food. This young general, who carries an item belonging to someone from He Simu's past, seems not to be the real Duan Xu. As they test each other through subtle exchanges, He Simu gradually uncovers the dark past and aspirations hidden within Duan Xu’s heart. In turn, Duan Xu discovers the steadfastness and loneliness that He Simu has endured. Despite the fleeting lifespan of a mortal, no more than a hundred years, and the four-hundred-year-old ghost who still retains the appearance of a young girl, they resist the relentless passage of time through their love.

It tells the story of a secret organization of supernatural abilities called "Nanshan Hunters." It follows Nie Jiuluo and Yan Tuo, which initially their relationship starts off combative, but after several life-and-death collaborations, they gradually develop mutual trust and affection. Together, they confront the villain Di Xiao, protect love and peace, and ultimately become life partners.