Yun Lan grew up in the city of Chang'an since she was a child. She has had a good heart since she was a child and was deeply loved by her grandmother. When she was young, she heard her grandmother tell stories of loyalty to the emperor and serving the country, chivalrous and tender feelings, and she yearned for love. People said that the Yun family had a good upbringing, rather than saying that their master was good. As her own strategies for governing the country were included in memorials, she was named the crown prince and tutor. Facing the threats from the prince, the queen mother, and the strength of various people, Yunlan firmly followed the path she had chosen. The prince finally grew up and respected the smart female master. However, Yunlan set up another chess game to turn the prince into an emperor for the ages. In the end, she had no regrets and was buried underground with her beloved young man!