Xu Chenran was transformed into the son of a criminal who was framed and killed, and was exiled for three thousand miles at the beginning. Relying on modern game theory and insight into people's hearts, he stirred up the chaos in the court as a prisoner, treating all the princes and beauties in the harem as pawns. And the "White Moonlight" Sun Nanxi who pushed him into the abyss was smiling, waiting for him to come back to play chess.