Yang Juanli, a country girl who understands the workings of nature and celestial phenomena, is thrust into the treacherous imperial court after a controversy over intercepted grain. Strange heavenly omens begin to surround her. She is hailed as an auspicious sign by some and condemned as a witch by others. Every faction watches her closely, eager to bring her under their control. The Emperor gazes down upon her, while the Imperial Preceptor conceals the secrets of heaven. From the imperial palace to the frontier, everything is a chessboard. Refusing to become a pawn, this farmer's daughter breaks free from the shackles of fate and confronts the turmoil of the imperial court and the unfathomable ways of heaven herself.