It’s an era where Kings and Queen still exist in Korea – where the monarchy stands above all. A word spoken by the Royalty is law.

No one can defy them. Except for this ignorant girl, Kim Nana. She didn’t know anything about her birth country as she had been living in the US since birth.

And by fate, she encountered with the most arrogant and annoying Crown Prince of Korea. What happens if their parents agreed to have them engaged due to past relations?