From major highlights to background context, understand everything about Fact-Checking Minji's Debut Age: International Age, Korean System, and Trainee Year's with our comprehensive overview.

For decades, tracking a Korean idol's age required understanding three separate counting structures: international age, year age, and the traditional se-neun nai (counting age). Minji's debut occurred right before South Korea reformed this system, leading to persistent confusion on Western streaming hubs and fandom wikis.

Under the traditional system, infants turned one year old on the day they were born. Everyone then gained an additional year together on January 1, regardless of their actual birthday. Because Minji was born in 2004, she entered 2022 as a 19-year-old under traditional convention.

Traditional System: 2022 (Current Year) - 2004 (Birth Year) + 1 = 19 years old

International System: May 7, 2004 to July 22, 2022 = 18 years, 2 months

International fans saw official Korean variety show captions reading "19," while Western music outlets listed her as 18. In December 2022, the South Korean National Assembly passed a historic statute standardizing administrative and civil age counting to the international system. When that law took effect in June 2023, Minji's legal age across all Korean documents officially aligned with her international birthday calculation, permanently resolving the discrepancy.