This drama is set in modern day where South Korea is governed by a constitutional monarchy. Lee Jae Ha is a handsome and materialistic crown prince that doesn't care about politics.his life turns upside down when his brother forces him to join a hybrid team consisting of soldiers from north and south Korea. Kim Hang Ah is a tough special forces agent who doesn't have any experience in love or dating though she wishes to get married and live peacfuly. when her comrade convinces her of joining the north-south team , she meets the cocky prince and they immediately start fighting but things change when they know they are arranged to be married.