The Chief Inspector of Cang Hai's Personal Bodyguard

Faced with the Wang family’s bloodline war, the Zhang family, who possess the Qilin bloodline, finally decides to gather the strength of their entire clan to send four bloodline heirs back to the four periods when the Wang family was at its weakest.

Zhang Yanfeng, whose bloodline is the purest, is unlucky enough to be chosen to face Wang Canghai, the man who lives in legend.

Through a twist of fate, he is accidentally swept into a struggle of revenge and political intrigue, and forced to become the personal bodyguard of the Director of the Imperial Observatory.