Both Princess Hours and Perfect Crown imagine a modern South Korea that still operates as a constitutional monarchy. The central romance in each drama is driven by a contractual marriage arrangement. Both explore the clash between modern life and strict royal traditions. However, Perfect Crown flips the classic "Cinderella" trope by featuring a wealthy female CEO who marries a powerless prince, while Princess Hours follows a poor girl who marries the crown prince. Ultimately, both series focus on how two people from different worlds navigate love and duty within the confines of the palace.