Eight years ago, Yun Fei Xue's father, Yun Tiangang, and his brother, Yun Fei Shan, met a tragic end while on a mission to protect a dragon vein. As the sole survivor of the Yun family, Yun Fei Xue harbors a mysterious secret. Infused with a parasitic power that fused with him, a phantom doppelganger emerged, threatening to consume his very essence. While struggling to control this malevolent presence within him, Yun Fei Xue learns of his family's untimely demise. In the shadows, he orchestrates the formation of an enigmatic group named 'Shadow' to delve into the unresolved mysteries surrounding his father and brother's deaths.