Does North Korea’s Kim Ju-ae have a younger sibling? Seoul thinks so

South Korea's spy agency believes North Korean leader Kim Jong-un has a younger sibling for his daughter, Kim Ju-ae, who is considered his apparent successor. This information provides a more detailed perspective on the ruling family's line of succession within the closed-off nation. Previously, the agency had indicated Kim Jong-un was thought to have three children, but the exact number and birth order of his offspring remained uncertain. The Kim dynasty is currently in its third generation of leadership, and the current leader's children are seen as potential future inheritors of power.