Kim Jong Un's daughter, Ju Ae, has long been seen as the next in line to rule North Korea.  SEOUL: North Korea released a rare image on Saturday (Feb 28) of leader Kim Jong Un's teenage daughter firing a rifle at a shooting range, adding to speculation that she is being groomed as his successor. Kim's daughter Ju Ae has long been seen as the next in line to rule the secretive, nuclear-armed state, and took part in a string of recent high-profile outings, including this week's military parade