This drama is one of my favorite drama. I watched it a long time ago already but writing a review now to give it justice.

STORY:
I believe this is one of the most balanced and entertaining costume drama I have watched. It has a lot of themes and lots of characters and plots and sub plots which I think perfectly found their place with the right importance. Starting from the beginning, there is a lot of funny situtions and when the main girl is the target of many other people and often at risk, she is always saved in an unexpected fun manner. The last part where the action takes a new step and the evil ones must be defeated, it is a little less fun as expected but the drama kept being entertaining.

CAST/CHARACTERS:
One of the main quality of the drama is its numerous characters and their importance. What the drama managed to do is to built a nice structure of relationships between these characters to make eveything consistent and enjoyable.

- The main couple the Crown Prince/ the girl Eunuch were so great. In fact, KYJ and PBG new faces and their chemistry brought a lot of fun and freshness to this drama. Their interactions are so fun from the beginning to the end. KYJ and PBG gained a lot of fame with this drama and it was completely deserved as they were a super adorable couple. One little critic will be that the Crown Prince never looked really endangered but he is the Crown Prince after all.
- JJY as the rival and former friend of the Crown Prince was a great character too. He belonged to the family of the enemy and he was the rival in love but he managed to be subtle and faithful to himself and his principles. I really liked him.
- I liked KDY too as the bodyguard of the Crown Prince. The friendship between him and the Crown Prince and the Eunuch was great to watch. He had a major role and his situation was complex. He had a lot of activity and ended siding with the ones he cared the most for. I liked the actor. Not a first rank actor but he proved afterwards he has good acting skills.
- Chae Soo Bin was there too even if I did not know her at that time. They did not make her an awfull rival of the main girl. She was a gentle, lovely but also smart and helpful. I liked the amount of screen she had and how she was honest with the Prince and Ra On.
- Princess Myun Geun was fun changing to an obese princess in love with a stranger to a resolute princess meeting that same man in the palace. This couple was a great comic relief.
- Plenty of other interesting characters who contributed the right amont of fun or suspense: The little princess, the chief of Eunuchs, the parents, the colleagues Eunuch...

MUSIC:
I liked the OST very much specially two of three songs which made this drama memorable. I am still listening to these songs years after.

REWATCH VALUE:
I don't watch everything but when I want to rewatch the best scenes, I am surprised I watch a lot of scenes.

OVERALL:
A good drama and for me, one of the most entertaining. It does use many tropes and clichés of dramas but it is inventive and fun and the great chemistry among the main protagonists make it believable. It talks about many things: cross dressing, one sided love, gay love, bromance, obesity, freewill, sacrifice in a fluffy manner and overall the drama shows a coherent and entertaining story.