With a leap from the turret, Fu Charong died, but he exchanged souls with Wei Yingluo who was running towards him. When she opened her eyes, Yingluo became the queen of the Qing Dynasty, and Rongyin's soul became a "ghost" that only she could see.
From then on, in the deep palace, each person had one soul and shared one identity. Wei Yingluo carried the queen's gentle skin, but inside she still had the sharp edge of revenge; Rong Yin's soul floated beside her, witnessing her husband's growing love for "him". They keep a secret together: find out the real murderer within a hundred days and decide who goes and who stays.
However, is it the shadow of the old soul or the heart of the new soul that Qianlong loves? When the only way to regain the body is to be close to death again... In this game with the palace as the game and the soul as the focus, will the winner be reborn or drift away forever?
One sentence summary: I became the queen's stand-in, and her ghost asked me to live for her and fall in love with her husband.