• Kim Yo Jong has been promoted to full department director in North Korea's ruling party.
• The party congress is a rare event directing state efforts on diplomacy and military strategy.
• Kim Jong Un vows to boost the economy over the next five years while focusing on nuclear program unveiling.
• Thousands of party elites convened in Pyongyang for this significant political gathering.
• Kim's teenage daughter, Ju Ae, is emerging as a potential heir apparent.

The powerful sister of North Korean leader Kim Jong Un, Kim Yo Jong, has been promoted during a significant party congress, where she was named a full department director by the Workers' Party Central Committee, according to Channel News Asia, South China Morning Post, and Le Monde.

This congress, a once-in-five-year event, was attended by thousands of party elites at the capital, Pyongyang, providing a rare look into the political workings of the reclusive nation, as emphasized by Al Jazeera, Channel News Asia, and South China Morning Post.

Alongside her promotion, Kim Jong Un outlined his plans to overhaul the economy over the next five years, promising a "full-scale progress phase", which includes advancements in thought, technology, and culture, as stated by Al Jazeera and Le Monde.

In this context, Kim Yo Jong's influence continues to grow, as she is expected to lead efforts in propaganda, especially concerning inter-Korean relations and international strategies, as reported by Channel News Asia and Al Jazeera.

Additionally, the congress is seeing heightened interest in the whereabouts of Kim Jong Un's teenage daughter, Ju Ae, who is being speculated upon as an heir apparent, according to insights from South China Morning Post and Le Monde.