Aged 17 in March 2024, Choe was selected to join the North Korea under-20 team for the 2024 AFC U-20 Women's Asian Cup.[2] She featured in all five matches of the tournament, helping North Korea secure the championship title. In the semifinals, she scored the opening goal against rivals South Korea.[3]
Two months later, she was named to the final squad for the 2024 AFC U-17 Women's Asian Cup in Indonesia. She helped North Korea win their fourth title, scoring 5 goals against hosts Indonesia.[4]
In September 2024, she was selected for the final squad of the 2024 FIFA U-20 Women's World Cup. She played a crucial role in North Korea's third world title, scoring six goals to claim the Golden Boot, including the only goal in the final against Japan. She was also named the tournament's best player, earning the Golden Ball.[5][6] a month later, she got selected for the 2024 FIFA U-17 Women's World Cup.[7]
^"일본 떨게 만든 '17살 여자 메시' 최일선…북한 20살 월드컵 세번째 정상" [Choe Il-son, the '17-year-old female Messi' who made Japan tremble… North Korea wins the U-20 Women's World Cup for the third time.]. hani.co.kr (in Korean). 23 September 2024. Retrieved 23 September 2024.
^"일본 꺾고 통산 3번째 우승…최일선 'MVP · 득점왕'" [Defeating Japan to claim their third title... Choe Il-son 'MVP · Top Scorer]. m.news.nate.com (in Korean). 23 September 2024. Retrieved 23 September 2024.