Jumong examines the life of Jumong Taewang, founder of the kingdom of Goguryeo. Few details have been found in the historical record about Jumong, so much of the series is fictionalized.
Upon the announcement of the king's death in Goguryeo, a fierce battle ensues among tribes. Queen Woo, who immediately becomes the target of princes and five tribes vying for the throne, struggles to crown a new king within 24 hours. Will Queen Woo be able to transcend the constraints of gender and era to carve out her own destiny?
Set during the turbulent time of the fall of Goryeo and the founding of Joseon, two former friends face-off against one another over a woman and the future shape of the nation.
The story takes place at the beginning of the 19th century. Goo Hae-Ryung is a historian who tries to fight gender stereotypes as her work is often looked down on. She meets Prince Yi Rim.