Is the story of korean drama "Goong" just in the imagination of the main girl?

Question

the koreans dont have queens or princes... -______- could someone explain? but dont give away the story, i've only watch the first episode.

Answer 1

i'm korean

and a ling time ago there were king and queens and

princes and princesses so basically the time is back then.

Answer 2

its not in her head, what they say about the palacce being empty is just to the audience. kind of like a side note. but its like imagine if there was a king and queen then something like that could happen and thats when the story begins