Kim Yo Jong, sister of North Korean leader, promoted to nation's top ruling body
https://edition.cnn.com/2021/09/30/asia/kim-yo-jong-promoted-leadership-intl-hnk/index.html
If she became the leader of the country, she will be the first female North Korean leader and will also be the first North Korean leader that is not a son or daughter of the previous leader. So, it's a rare case in the country.
But, it is one thing. Whether she can improve political issues in the country is another.