She's a nobody from the future. He's a prince in the past.

Lily is fascinated by the idea that a matchmaker has just been given the ability to grant wish fulfillment. When the purple haired matchmaker actually manages to send Lily into the past taking the place of Princess Liliana, betrothed to the Prince of Aragonia, Lily is excited to play along.
Eduardo, Prince of Aragonia, has only had his parents' horrid marriage to compare to and is less than eager to make a similar match. When Liliana arrives, she's different than expected, and he finds himself less bothered at his parents forcing him to marry. Can the two of them find happily ever after, or will the dangers of the past and Lily's strange ways keep them apart?