Set in Lihuo City, the plot revolves around a sinister plan by the Dark Temple, which aims to exploit Huo Ling’er's Vermilion Bird bloodline to open a forbidden gate and unleash the Army of Ashes—a destructive force sealed for generations.

To ensure his success, the Dark Lord places a Twin Curse on Huo Ling’er: if he dies, she dies too. Faced with this cruel trap, Shi Hao risks everything by absorbing the ash flames himself, which pushes him to the brink of corruption. However, through sheer willpower, he resists the darkness and gains new strength.

A series of intense battles follows, where Shi Hao defeats powerful foes including the Bone God, the Blood King, and finally the Dark Lord himself. In the climax, he breaks the curse and rescues Huo Ling’er, whose power and appearance evolve after fusing with Shi Hao's Supreme bloodline.