Dou Ling was the most beloved granddaughter of General Dou Wu during his lifetime. When he was eight years old, the Dou family was murdered by eunuchs, and the entire clan was confiscated, and the young Dou Ling was tragically involved in the people.Unwilling to be so destined, Dou Ling, a pseudonym Yanhuang, lurked into the Xuanyi Pavilion controlled by the eunuch Cao Jie. With his extraordinary courage and wisdom, he grew up in the Xuanyi Pavilion to be resourceful and both civil and military messenger, and also gained the sincere friendship of Tongque, Chen Xiao and others.

While carrying out various tasks sent by Cao Jie, Yanhuang took several risks, cleverly saved the loyal and kind who were framed by eunuchs, punished the corrupt eunuchs, and joined hands with Chen Xiao to find the Xuanyi list, allowing many controlled Xuanyi envoys to regain their freedom.With Yanhuang's repeated arrangements, Cao Jie's forces gradually fell apart. Finally, with the help of his partners, Yanhuang found evidence that Cao Jie framed his grandfather Dou Wu, and finally rehabilitated his grandfather and restored his family's innocence.