jiang zhihuan plays zheng lu, who was originally an archer but now a courier. he and his proud sister and his first love reunited after eight years, these two women in his life traveled to the mingzong era of north korea, and their lives were constantly threatened. jing shouzhen plays li haidun, a doctor in the emergency medicine department. she is the only child of a wealthy family. she worked as an intern in the emergency medicine department of the best university hospital in south korea for three years. she has an elegant temperament and taste but a little arrogant.
