Before the age of nineteen, he was a young idol among the nobles of Dongyin; after the age of nineteen, he was a second minister despised by everyone in the world. Before the age of three, she was a little girl with a mysterious identity in Xiping; after the age of three, she was a battlefield orphan adopted by the Prime Minister of Dongyin. By disobeying his father and abandoning his mother, and by betraying his country and family, is he being unfaithful and unfilial, or is he being righteous? A secret letter, a nightmare, is she stuck in the mud, or is she in the dark? Together with the four countries, they went through many conquests. The identities and positions between him and her changed again and again. What will be the outcome? Chaos is about to arise and talents emerge in large numbers. How can they get to know each other and fight and cherish each other? On this chessboard, where will he end up?