During the Chosun Dynasty, Chae-Ohk finds herself enduring the lowly status of a Damo, a low ranking police officer. Despite being separated from her father and brother at a young age, she grows up to be a high skilled swordsman and police officer. All thanks to the kind and generous Hwangbo Yoon. The star crossed lovers are not only faced with obstacles of class differences, but a charismatic rebel swoops in between the two causing both heartache and jealousy. As the three face off against one another, the history of the three people reveal to be much more complicated than anyone could have imagined.