One is the gentle and jade-like Vice Minister of Zhongshu, and the other is the cold and sharp sword-like Marquis of Zhenbei. When they first met in the court, he protected him from the powerful prime minister's power; late at night in the post house, he received an anonymous secret letter of "your father's death". A case involving the abolition of a crown prince fifteen years ago, and a suspicion about food and grass at the border three years ago, led two young people with no connection to each other into the same shocking conspiracy. Friend or enemy? A chess piece or a chess player? When the truth was revealed, they discovered that the whole country had been staked on this game of chess from the beginning.
