Shen Yan, a modern data analyst, uses the unique "Heavenly Insight" barcode in his eyes to stir up the Great Zhou dynasty.
He helps Prince Jing root out corruption, distinguish loyalists from traitors, and solve the mystery of a deadly poison. Every precise scan sends shockwaves through the imperial court.
But his energy is limited, powerful enemies surround him, and a colossal barcode hidden deep in an ancient mine points to the ultimate secret of this world.
Caught between imperial power, the chancellor's authority, and the incorruptible officials, he must use the most scientific data to carry out the most dangerous political maneuvering in the least scientific of eras.
