Kim Yo Jong, the sister of Kim Jong-un is one of the North Korean Supreme Leader’s most trusted aides.
Family ties are often important in North Korean politics, but that can be dangerous when relationships go sour.
Kim Jong-nam, the eldest son of former North Korean leader Kim Jong-il and half-brother of Kim Jong-un, was assassinated using nerve gas at Kuala Lumpur International Airport in Malaysia.
The killing has long been believed to have been ordered by Kim Jong-un.
This follows a pattern that has repeated over and over again: Previous leader Kim Jong Il dealt ruthlessly with his brother-in-law Jang Song Thaek and Kim Yong Ju, the younger brother of Kim Il Sung, was that former leader’s trusted confidante until 1975 when he was summarily dumped.
Kim’s sister Kim Yo Jong has been on hand throughout the Trump summit in Hanoi. She stood next to her brother at numerous official engagements – even on one occasion holding an ashtray for her brother.
But she takes great care not to threaten her brother’s position and visibly defers to him – such as on this hilarious occasion when she peeped around a pillar while the North Korean leader was walking next to President Trump.
Ms Kim was clearly unsure whether she’d left enough of a gap when following her brother – and then when she realised she had been spotted by the cameras, was forced to go through with it.
Ms Kim then lurked behind a large pot plant while the two leaders chatted to US Secretary of State Mike Pompeo and Mr Kim’s right-hand man Kim Yong Chol.
She appears to be anxious not to be seen to be rivalling her brother’s power. And, while she’s doing it, providing the rest of us with a much-needed chuckle.