Chen Yan, a lowly slave from a poor family, was granted the title of marquis and prime minister with a piece of paper; Su Yanqiu, who disguised herself as a man, held the secret account of subverting the Six Ministries. They went from distrusting each other to trusting each other in life and death, but they were involved in the shocking whirlpool of the secrets of imperial power, the legacy of the previous dynasty, and the mutiny of the Forbidden Army. When Lao Zuo uncovered the mystery of the royal bloodline, when Liu Rushuang lit the flames of restoration, Li Huaide held the blood edict, and Zhao Heng struck back - this night of becoming a marquis was just the beginning of a more bloody chess game.
