Moo-myoung is a Joseon dynasty headhunter who tracks down fugitives and lives off their rewards. On one of his missions, he encounters a beautiful noble lady, Ja-young, and falls in love with her. A few years later, Ja-young enters the royal palace as the next queen of Joseon. Lovesick Moo-myoung becomes the personal guard to the queen in order to be closer to Ja-young. After attaining the title of queen, Ja-young tries to modernize the dynasty by allying with foreign nations but becomes turmoiled into a political power struggle.