The story takes place in the early 19th century. Goo Hae Ryung is an intern who wants to become a court historian. However, at the time, it was not acceptable for women to write historical documents. She takes one step at a time to forge her own destiny in Joseon, where Confucian ideas are deeply rooted. She wants to fulfill her duties as a historian and prove to the world that everyone is equal. In addition to the struggles of female court historians, the drama will tell the story of her romance with Prince Yi Rim, who has a secret of his own.