The widow of Kim Jung-ju, the founder of video game company Nexon, she is among the richest people in South Korea, with Forbes estimating her net worth at US$2 billion and ranking her 15th richest person in the country in December 2024.
[3] In 2003, she became a director of Nexon and of its holding company NXC.
In 2022, Kim died while on a trip in Hawaii, United States.
Due to his passing, she became the largest shareholder in NXC (which in turn is the largest shareholder in Nexon); she came to hold a 34% stake in the company.
[4] In 2024, NXC announced it was buying some of its shares from Yoo and her children.