Olivia, struggling with writer's block after a break up, takes a tropical holiday in hope of some inspiration and meets Prince Alexander, who needs some distance from his duty to marry royalty.

Despite busy schedules causing distance, Olivia and Prince Alexander travel to Torovia for Christmas with his family. Clashing cultures between their families lead to various mishaps.

Prince Alexander is ready to marry Olivia, a commoner. But when a bitter lord invokes ancient laws to block the union, Olivia, a romance writer, stumbles upon a hidden diary tucked within an old volume of history, revealing a long-lost truth that may be the key to saving her happily ever after.