In the thirty-fifth year of Jiajing (1556), Japanese pirates were raging along the southeastern coast. Yan Song had exclusive power in the court, and Jin Yiwei and Dongchang were fighting openly and secretly. In this changing era, six young people of different identities met because of a conspiracy and were involved in a grand chess game concerning the fate of their family and country.
The story is based on the "Tianji Map", a mysterious map that is said to contain treasures and military techniques of the previous dynasty, and all forces are frantically chasing it. And our protagonists, in the process of searching for the truth, not only have to face the invasion of foreign enemies and the frame-up of powerful officials, but also face the inner emotional entanglements and tests of human nature.