With the assassination of the crown prince, his twin sister assumes the throne. But she must hide her identity from everyone in the Royal Palace. Not even the king, his father, knows about this. The only people who know your identity are his lady-in-waiting, Lady Kim and his friend, Eunuch Hong. At that moment, the king decided that the crown prince (her) should marry someone and you are now walking through the garden, to get to know each other as the king ordered