I am a sucker for gender bender dramas, and this one is done well. Park Eun Bin is solid as steel as she maneuvers the political machinings of the royal family as a pretend monarch. Rowoon is decent but not outstanding as the Royal tutor loyal to his King. The supporting cast did a better job than Rowoon, even the child actors playing their younger selves. Kudos especially to rookie actor Nam Yoon Su who played the brooding noble pining for his cousin. The plot, while intricate, was a bit predictable, especially the anti-climactic ending. Despite this, this drama was an easy and enjoyable watch for me.