This was a lovely surprise. The world building was fantastic along with the a interesting story line. I would easily recommend this to anyone, in or outside the drama community.

Story
I love a strong female and Naksu/Mu Deok was not playing around. I enjoyed watching how everyone dealt with her constant scheming and involvement. I found myself slightly annoyed that Jang Uk was always on the edge of being a badass but didn't get his full moment (see season 2.) I also loved that there was more that one villain. As in life, there is usually more than one person willing to stomp on others to get what they want. Someone commented on how they felt sorry for the Prince and I totally agree. That continued into S2 for me. The ending on this caught me completely off guard. My jaw was on the floor. I was not well. I don't think I ever rushed to start another episode faster that Season 2, Episode 1.

Acting/Cast
High rankings here as well. I found myself really into the the B stories and characters. So Min nailed the sassy spirit of Naksu stuck in the body of MuDeok. You could feel her frustration with not being able to do what she was use to. This drama also gave me a while new appreciation for Jae Wook's range. I'll be doing a deep dive on his filmography for sure. I also had so much sympathy for Seo Yul. Probably the only second ML that I almost wish would have gotten the girl. Special shout out to Seung Ho who surprised me as the Prince/Go Won. Just enough arrogance to be royalty but human enough to fall for MuDeok's mischief.

Music
The music did help push the tense moments along. The funny affects added to the comical moments were also well timed. I also recall enjoying the outro music, strangely.

Rewatch Value
This definitely has rewatch potential. As a spoiler to my review on season 2, I'd say season 2 is the one I would actually prefer to rewatch vs season 1.