Su Youyou, a three-and-a-half-year-old celestial fairy child, descends to the mortal realm as the Grand Empress of the Heng Dynasty. Her mission is to help the fated Mo Yu save the empire from collapse. Facing fierce harem conflicts and schemes from the evil concubine Ye Shiyu, she uses immortal magic and wisdom to protect the mistreated Mo Yu time and again. She breaks Ye Shiyu’s Gu curses and tricks, paving the way for Mo Yu to become the crown prince. After fulfilling her mission, Su Youyou returns to the celestial realm. Eight years later, the now Emperor Mo Yu reunites with her at last.
