That's what people are saying in South Korea, as they consider the unprecedented visit by Kim Yo Jong, the sister of North Korean leader Kim Jong Un, who has raised her profile dramatically at the Pyeongchang Winter Olympics.
Are these Winter Games having the effect South Korea had hoped, in thawing relations with the north?
Saturday's meeting between Moon and Kim Yo Jang was the most significant diplomatic encounter between the two nations in years, while the younger Kim's trip to the south marks the first time a member of the North's ruling dynasty has visited since the Korean War, which ended in 1953. Some burned North Korean flags and photos of Kim Jong Un at the rally. "Her being here is not that bad, but I feel North Korea has shown up to the Olympics without paying", Yoon told CNN during Saturday's hockey match between Switzerland and the unified Korean team.
Korea, ranked 22nd in the world, nearly took a surprise lead when Han Soojin's shot hit the crossbar in the first period but never looked like threatening after that against the side now ranked sixth in the world.
Dennis Wilder, a Georgetown University assistant professor, who served as National Security Council senior director for East Asian affairs during the George W. Bush administration, suggested Moon should accept the invitation only if Pyongyang agrees to discuss denuclearization with Washington.
North Korea is sending 22 athletes, including three Alpine skiers, to the Pyeongchang Games thanks to special entries given by the International Olympic Committee amid rare reconciliation mood between the rival Koreas.
The team had included 12 North Korean players.
Although the ensemble, consisting mainly of young women, is regarded as a propaganda tool of the North Korean regime, its performances were not politically charged in an apparent bid to underline harmony between the two Koreas.
Pence did say, however, that Moon shared with him details of his meeting with North Korean leaders, without elaborating.
Speaking to the Washington Post aboard Air Force Two on his way home from the Games, Pence said Washington would keep up its "maximum pressure campaign" against Pyongyang but would be open to possible talks at the same time.
While Moon did not hesitate to shake hands and smile with his North Korean visitors, Pence didn't appear to even look in the direction of the North Korean delegation during the Friday event. "It will be hard for the allies to resume their military exercises during summit planning".
As he left the games, US Vice President Mike Pence said: "There is no daylight between the United States, the Republic of Korea and Japan on the need to continue to isolate North Korea economically and diplomatically until they abandon their nuclear and ballistic missile programme".
"It is too early to say if. using the Olympics in a way to reduce tensions, if that is going to have any traction once the Olympics are over, we can't say right now", Mattis said.
The North Korean delegation was invited to lunch with South Korean Prime Minister Lee Nak-yeon at the five-star Walkerhill Hotel in eastern Seoul on Sunday, an official at the prime minister's office told Reuters.
Global alarm at the rapid advance of nuclear-armed North Korea's weapons technology rose further previous year when the regime tested its Hwasong-15 ballistic missile theoretically capable of hitting the mainland U.S., in a challenge to Washington that has threatened to "utterly destroy" the regime in the event of an attack.