In the twenty-ninth year of the Jiajing reign, Anda’s cavalry swept across the border. A fifteen-year-old boy from a frontier village was forced to enlist, carrying nothing but a copper token with a missing corner that his father had left behind. From the frontier garrison to the capital, from Yan Song to Zhang Juzheng, from the war against the Japanese pirates to the battlefields of Korea, the secret behind that copper token is the last secret of a decaying dynasty. It also holds the truth of where he came from and where he would ultimately belong.