As a valid fan of the actor Kyungsoo, I had to watch his first period drama. And, even though he didn't disappoint neither in his romantic scenes, nor in the action scenes, the story had some major plot holes that were never properly explained. The story, as it is, was interesting, as the main idea behind it was kind of original and well executed. However, the drama was kind of boring at some points. The performances, moreover, were really good from all the actors and actresses and the soundtrack was phenomenal. So, 7 out of 10.