It is a nice heart-touching drama which will take you to old times...when the Korean "JOSEON" was ruled by kings.
It is about the mistake and weakness of the king, the evilness of officials, the changes the crown prince demands, love with a eunuch, friendship getting faded by the formalities, etc,
You will like this k drama if you are a fan of sweet and tragic love stories with controversies and a happy ending.