In the original work of " Celebrating Years," Li Yunrui was the Eldest Princess, the Qing Emperor's younger sister, and Lin Wan 'er's biological mother. In the original novel, there was an ambiguous relationship between Li Yunrui and the Crown Prince. The two of them often met at secret locations in the Imperial Palace. Moreover, Li Yunrui had once advised the Crown Prince to help him fight for the throne. In the drama, the relationship between Li Yunrui and the Crown Prince was even more complicated. The Crown Prince had deep feelings for Li Yunrui, but Li Yunrui only treated him as a tool to fight for power. She used the Crown Prince's feelings to help her grasp more power. At the same time, she was secretly plotting some schemes.