She is Empress Daliang, and he is the imperial guard. A relationship that has not yet begun is buried under the high walls of the palace. The emperor was suspicious, the eldest princess set up a trap, and a secret edict from the late emperor tightly entwined the fate of the three people. A night party by the Furong Pond led to a murder. In the royal study, the emperor's knife was placed on his neck. She used a secret edict to prove her innocence, but she didn't know that in that edict, the late emperor had already granted her freedom. She chose to stay, but was she staying because of the late emperor's entrustment, or for the sake of the person kneeling in the palace? And he, that aloof emperor, revealed a fragility that no one had ever seen after she turned around. As the old saying goes, the two male protagonists are full of taboos. When the old love is hard to break, new thoughts arise again, and the ultimate pull and sinking between the three people, who is her destined disaster?