We have a prince who must acclimate himself to peasant life (be it in the future or past age) while being helped by the main actress. Both dramas share the princes being looked down upon simply because they are used to being a crown prince (and many hilarious moments because of it). They also find advantageous situations because they are so smart and have outstanding qualities. The princes then also strive to protect the woman they love while defeating the bad guys. Honestly the more I think about it the more these dramas are similar.