In order to save the declining family, Lin Qingyan, as a substitute for "Bai Yueguang", agreed to marry Gu Chengye, a powerful figure in the imperial capital.
Gu Chengye is cold and strong, and has long had obsessions in his heart. He regards this marriage as a sign of empathy for his savior. Su Wanqing holds the token in hand and intervenes as the "rightful owner", weaving countless misunderstandings; Gu Zhenhai, the uncle of the Gu family, secretly disrupts the situation for power, making Lin Qingyan's true identity, the legitimate heir of the Gu family in exile, a secret that has been covered up.
In this dislocation game between the substitute and the real body, Gu Chengye gradually fell into Lin Qingyan's gentle tenacity. When the lies surfaced, he was shocked to realize that he had lost the real moonlight and his heart. And in the whirlpool of identity and true love, can Lin Qingyan maintain his goodwill and usher in the love and destiny that belongs to him?
