Princess Li Shi He of Changning of the Great Ming Dynasty has been dead for three years, resting in the imperial mausoleum. On the third anniversary of her death, Zhao Jinghuai, the regent who was once betrothed to her, personally removes her remains from the imperial mausoleum. Li Shi He, whose spirit still lingers in the world, is filled with confusion and quietly follows him back to the Prince Regent's residence. Amid intertwined family feuds from the previous dynasty, a sudden palace upheaval turned the two from betrothed lovers into people separated by life and death. Li Shi He has always believed that she is the person Zhao Jinghuai cannot forgive and whose grudge against her he cannot let go.