Xiao Jingheng, the seventh prince who had been guarding northern Xinjiang for ten years, returned to Beijing under an imperial edict and found that his mother's family had been massacred, his biological mother had become a mad concubine, and the mysterious death of the prince's brother remained unsolved. He led the old troops of the Xuanjia Army to join forces with Chu Minghuang, the enemy's proton princess, to kill in the court and harem. When it was discovered that the death of the late empress twenty years ago actually involved the secrets of the Four Kingdoms, a change in the Nine Palaces suddenly occurred on the bloody chessboard...
