The modern criminal investigation boss {Shen Yanci} accidentally traveled through time and became the bastard of a prince in the capital who was framed by his vicious stepmother. He awakened to the constitution of a child of luck - he can always avoid misfortunes and get clues. In order to clear up his grievances, he relied on modern criminal investigation thinking and the blessing of luck to transform into a detective in the capital and repeatedly solve mysterious cases. The tsundere widow Su Lingwei was forced to cooperate with him. The two went head-to-head, but gradually fell in love during the investigation. However, behind the seemingly independent case, there are involved the vicious plot of the stepmother, the ambition of the powerful minister, and the disturbance of the mysterious secret lover. It is difficult to distinguish between good and evil, and the fog is thick. Shen Yanci not only wants to find out the real murderer, but also protects the people around him. He also wants to find his own path as a detective in the treacherous capital city.
