Five months later, Kim joined the Korea National Ballet (KNB) as the youngest principal dancer.

In 1999, after winning the competition, the couple received the Order of Culture Merit: Hwagwan from The Republic of Korea; Kim was the youngest recipient.

In 2010, Kim danced the première of Don Quixote as Kitri, with choreography by Alexei Ratmansky, with Dutch National Ballet.

[4] The two principal ballerinas had shared the role of princess Nakrang in the KNB show "Prince Hodong" in 2011 at the Teatro di San Carlo in Naples, Italy.

Her last performance with the KNB was Giselle at the Seoul Arts Center following which she became a professor of dance at the Kyung Hee University.

[6] Kim has been described a versatile ballerina, with brilliant academic technique and as deeply expressionistic with beautiful sharp lines.

Her elegance has made a great impression in notable classics like Swan Lake, Giselle and La Bayadère,[2] and Kim is in perfect harmony with music: she fits with neoclassical and contemporary ballets, like Tchaikovsky's Pas de Deux.