Call me biased but I've rewatched this drama for like 5 times. The story of this drama is seriously good, the OST harmonize every scene perfectly, the art team had worked in a splendid way, and all the actors act well.

RELATIONSHIP:
If you are young and or don't have lots of actual experience in romance, then you'll like this drama. Because every little thing that matter in this drama relate to the characters' innocence. You can clearly see the character development along the way and every plot does make sense. The relationships between each character built naturally in a sweet manner. You can feel the friendship, romance, and family bond.

ART:
Talking about the art of this drama... Everything designed beautifully, A perfect fusion in Korean and modern culture in the setting, wardrobe, even the makeup. Notice the detail in every character and you will see how they present everything carefully. This certainly gives a "WOW" factor of a royal family. Not just rich, but royal. Not to mention, they spend A LOT OF MONEY on this drama, especially to make the castle setting.

It's a drama that worth watching, guys. If you haven't please give it a shot. Happy watching!