[3][4] In 1999, at the age of 5, Ha made her debut as Kang Hye-rim in the SBS drama Trap of Youth [ko], which recorded the highest viewership rating of 53.1% at the time.
[5] Ha began transitioning to adult roles with Hwang Young-geon in School 2017 and Sunny Again Tomorrow in 2018.
[8] She received the nickname "archer senior" (양궁선배; yanggeung seonbae) for the role.
[10][11] She also appeared in an advertisement for a promotion video for the "Archer" update of Kingdom of the Wind: Kite.
In May, Ha was appointed a Public Relations Ambassador of the Office of Cultural and Sports Promotion alongside Baek Ye-seul.