Shen Qingli, a modern Chinese painting restorer, traveled through the Zhou Dynasty in a museum accident and became the daughter of a ninth-grade civil servant who was about to enter the palace. She was chosen at a glance because she looked very similar to the former princess Murong Wan of the former dynasty Princess Bai Yueguang, who had been deceased for three years. On the night of their wedding, she accidentally broke into his conversation with the "dead person" and realized that she was just a stand-in. The extreme pull from hatred to love, the turmoil of the former harem, and the shocking secrets buried deep under the palace walls slowly unfold.