Many years ago, the Western Lee Kingdom was promised a bride for the then infant, Prince Lee Minho. The King and Queen of the Eastern Han Kingdom were sure an arranged marriage was the best way to stop upcoming wars with the Lee Kingdom, and gain allies when battles with the other provinces occurred. However, the couple only had one child, a boy, before they mysteriously both died. Fifteen years later, wars loom even closer, inching towards the Western Kingdom, and, as a last resort, Prince Lee Minho is shoved into a strange, never-before-seen marriage with Crown Prince Han Jisung. Clearly, there will be many problems with this arrangment, the major problem for the princes being that they don't want anything to do with each other. At all. Is it possible, if they push everything else aside, these two princes could fall in love? And if they did, would it be enough to save their marriage, and save both their kingdoms?