She is still only a child, yet she is already being prepared for a future with her finger on North Korea's nuclear button.
Aged somewhere between 12 and 14, Ju Ae has stepped from the shadows to stand beside her father at missile launches, military parades and high-level state events.
South Korean intelligence officials said this week that her increasingly prominent role suggests she has effectively been given the nod as her father's likely successor, although the secretive regime has made no formal confirmation.
First revealed to the world in 2022, she has since become an increasingly visible presence at the heart of power in Pyongyang.
Once shielded from public view, she now walks hand in hand with her father before ranks of generals and applauding party officials.
She is the child of Kim Jong Un, the ruler who has overseen nuclear weapons tests that rattled the world, purged senior officials and allegedly ordered executions with anti-aircraft guns.
It is that apparatus of fear and firepower she could one day command.
Believed to be about 14, Ju Ae has stepped from the shadows to stand beside her father at missile launches, military parades and high-level state events, fuelling mounting speculation that she is being positioned as his successor.
The same regime that tests nuclear missiles and purges rivals also dictates the smallest details of daily life, with citizens forced to choose from a narrow range of government-approved hairstyles.
Ju Ae's rise brings extraordinary privilege.
As the daughter of one of the world's most ruthless dictators, she is believed to enjoy a life of luxury in a country where millions face chronic food shortages and repression.
Yet the perks come with immense expectation, and the heavy burden of a nuclear arsenal, a vast military machine and a personality cult built around the Kim bloodline.
Little is publicly known about Ju Ae, and even her precise age is uncertain, though she is widely believed to be aged between 12 and 14.
Raised behind the guarded walls of North Korea's ruling dynasty, she is thought to be one of three children born to Kim Jong Un and his wife, Ri Sol Ju.
Ju Ae spent her childhood hidden from the world inside the secluded compounds of the Kim family before her dramatic debut in 2022 at a missile launch propelled her onto the global stage.
Since then, North Korean state media have referred to her as 'the beloved child' and a 'great person of guidance' - 'hyangdo' in Korean - a term typically reserved for top leaders and their successors.
In 2013, former NBA star Dennis Rodman claimed he had held the leader's baby daughter during a controversial visit to Pyongyang, describing her as 'Ju Ae'.
At the time, the remark was largely dismissed. It now appears to have been the first public glimpse of a child who may one day inherit a nuclear-armed state.
Details of her education remain closely guarded, though analysts believe she has been privately schooled within elite compounds in Pyongyang rather than sent abroad.
Unlike her father, Kim Jong Un, who spent part of his youth studying in Switzerland, there is no evidence she has received schooling outside North Korea.
Rodman later suggested the young girl enjoyed sports and described her father as 'a good dad', offering one of the only fleeting insights into her private life.
Ju Ae spent her childhood hidden from the world inside the secluded compounds of the Kim family before her dramatic debut in 2022 at a missile launch propelled her onto the global stage.
Once shielded from public view, Ju Ae now walks hand in hand with her father before ranks of generals and applauding party officials.
In carefully choreographed photographs released by state media, Ju Ae is typically dressed in dark tailored coats, standing between decorated generals or beside towering intercontinental ballistic missiles.
Details of her education remain closely guarded, though analysts believe she has been privately schooled within elite compounds in Pyongyang rather than sent abroad.
Beyond that, almost nothing is officially known.
In carefully choreographed photographs released by state media, Ju Ae is typically dressed in dark tailored coats, standing between decorated generals or beside towering intercontinental ballistic missiles.
In some images she clasps her father's hand, while in others she surveys vast military hardware with an expression of calm composure that appears far beyond her years.
In 2023, South Korean media reported that some North Koreans privately expressed anger after Ju Ae appeared well-fed in state broadcasts despite the country's chronic food shortages.
Commentators outside the country noted her healthy appearance, with one describing her as looking 'plump like the moon' - a phrase that circulated widely online.
The reaction came amid warnings from Seoul-based analysts that North Korea was facing a significant grain shortfall, raising fresh questions about inequality inside the tightly controlled state.