An interesting concept terribly executed. If you expect to see a harem romance you will be disappointed. The synopsis is click-bait! Only three men from the harem showed up, while others were never even mentioned. Even so, there is NOTHING romantic between them except for the (ugly) male lead.

Story
The main story depicts Queen Dong Yi using various ways to sneak in and meet up with her legal husband (the King) against her mother's will. At the same time, her sister plots against her for the throne. The pacing was very slow and plot was predictable. In the first six episodes (that felt like filler), the Queen fools around until the conflict of the story emerges. After the first climax, conflicts are just naturally resolved without the Queen doing anything. She never suffered serious consequences. Besides, there were too many meaningless "filler" comedy scenes with no contribution to the plot.

Characters
I didn't mind the female lead being immature, but she never showcased character growth. In most conflicts, she just reverts back to her childish and carefree ways instead of taking her job serious for once. Even worse, the screenwriter tried to make the male lead stand out as quiet and mature, but he's just boring and shallow to me. The harem seems to accept the fact that the Queen has zero romantic interest in them. Supporting characters had potential to create more plot but were cut off quickly, resulting in poor build-up. The only interesting character was Doctor Dong, who was competent and quite badass.

Acting/Cast
Female lead had horrible acting. Male lead was expressionless. Supporting characters were average, including the antagonists.

Overall
I don't recommend due to weak characterization and shallow plot. The overall tone is comedic, so all sad and scheming scenes had failed to make me take them serious. When compared to Go Princess Go, which is in the same budget range, this drama is weak in every single aspect.