In Canglan Continent, humans, demons and spirits coexist. After the "War of Broken Dragons" thousands of years ago, the true dragon clan was regarded as taboo and their bloodline withered. Tianjin, the last spiritual dragon who bore the blood feud of annihilating his clan, accidentally met Yan Shu, an orphan girl who was cursed with the "World-Burning Karma Fire" in the process of searching for the lost dragon scales to reshape the dragon body. From using each other to relying on each other for life and death, the two uncovered the shocking conspiracy behind the war that year.