Baek Cheon and Ye Hwa were born on the same day and grew up as close as sisters. Despite their bond, their lives took contrasting paths as Baek Cheon became the last princess of Kangwi country, while Ye Hwa was born to a nursemaid.
As Baek Cheon prepares to marry the emperor of Daeju, she decides to escape in pursuit of true love and freedom. In her place, Ye Hwa is forced to assume the role of the princess and enter the palace.
Using their uncanny resemblance, the two women switch places and overcome many obstacles to enter the palace undetected. However, they soon discover that the luxurious palace is hiding dark secrets, and they are caught in the middle of its dangerous events.
Ye Hwa's perilous double life as both a maid and a princess leaves her unsure of how it will all end. Will her deception be discovered, or will she be able to continue her charade and survive the palace's intrigue?
