Eighteen years ago, a heinous murder occurred in the East Palace, leaving the life and death of the emperor and his grandson a mystery; eighteen years later, the death of the old eunuch Gu Zhao revealed the deepest scars of the empire. The young man Lu Qingan was forced to get involved in the chess game, and with seven "canonical bones" related to the fate of the dynasty, he embarked on a dangerous road of exile. Zhi Yesi's pursuit, Buyu Pavilion's transaction, the mysterious swordsman's protection... In this game of power and intrigue with the world at stake, he is both a pawn and the one who breaks the game. When the curtain of the dark night is lifted layer by layer, he must learn to use the most deadly secret as an edge to fight a bloody path for himself and his unjust past in the stranglehold of power.