After traveling through time and becoming a concubine in the Shangshu Mansion, Lin Zhiwei soberly acted as the substitute for Bai Yueguang in the heart of the third prince Xiao Zhidi. She used his power to seek revenge, and he used her face to remember her. A transaction in which each got what he needed should have paid off. Until his Bai Yueguang "resurrected from the dead" and she retired after her success, she was held tightly in his arms. There was paranoia in his eyes that she had never seen before: "Tell me, that 'Ayan' you call in your dreams every night... Why does he look just like me?" Only then did she realize that in this stand-in game, more than one person was always sinking, and the shadows they were chasing actually pointed to the same shocking secret that spanned time and space.