The modern girl Su Waner accidentally traveled through time and became the daughter of the Prime Minister's Mansion, embarking on a journey to ancient times. She meets Mo Xuan, the adopted son of the prince, and their love gradually grows, but she is targeted by her love rival Chu Qing'er. The Chu family rebelled, Mo Xuan shouldered the heavy responsibility of investigation, and Su Waner got involved in the palace struggle. Facing the Chu family's frame-up, she showed both wisdom and courage to help Mo Xuan expose the conspiracy. After the fall of the Chu family, Mo Xuan became a general, and Su Waner followed him to the frontier. On the border, they protected the country's tranquility, and their love became stronger and stronger. Su Waner finally became a true heroine and wrote a legend.
