In July 2021, she represented South Korea at the 2020 Summer Olympics held in Tokyo, Japan. She competed in the women's 400 metre freestyle, women's 800 metre freestyle, women's 1500 metre freestyle and 4 × 200 metre freestyle relay events. In the three freestyle events, she did not advance to compete in the semifinal. In the freestyle relay event, the team did not advance to compete in the final.