CNN  — 

If “diplomatic dance” were an event at the Winter Olympics, Kim Jong Un’s younger sister would be favored to win gold.

With a smile, a handshake and a warm message in South Korea’s presidential guest book, Kim Yo Jong has struck a chord with the public just one day into the PyeongChang Games.

“I hope Pyongyang and Seoul get closer in our people’s hearts and move forward the future of prosperous unification,” she said in her guest book message, referring to the capitals of North and South Korea.

Seen by some as her brother’s answer to American first daughter Ivanka Trump, Kim, 30, is not only a powerful member of Kim Jong Un’s kitchen cabinet but also a foil to the perception of North Korea as antiquated and militaristic.

But as North Korea’s brutal dictator, Kim’s brother has ruled with an iron fist since coming to power, operating Nazi-style prison camps, repressing political opposition and even executing senior officers and his own family members in an effort to consolidate power.

In Pyeongchang, her presence is a major story line for reporters and the buzz on the street, with some in South Korea curious and accepting, while others are skeptical, if not downright cynical.

“Her being here is not that bad, but I feel North Korea has shown up to the Olympics without paying,” said Yoon Jun-young, 23, indicating that the nation hasn’t made any political concessions to mirror its participation on the international sporting stage.

Kate Yoo, 21, who like Yoon spoke to CNN during Saturday’s hockey match between Switzerland and the unified Korean team, said she doesn’t think it’s “the best thing to have her here, although maybe part of having one of the Kim dynasty over is like a safeguard, then they won’t attack.