2019–2021: Pre-debut activities In 2019, she began performing in her hometown as a member of the Aemina Dance Crew, who specialized in covering the choreography of
K-pop groups. She moved to
Seoul to start her
trainee period without knowing how to speak the
Korean language. She made a cameo appearance in
BTS' July 2021 music video for "
Permission to Dance", alongside group member
Minji.
2022–present: Debut with NewJeans and dispute with labels On 1 July 2022,
ADOR teased the launch of their first girl group,
NewJeans, by posting three animated videos of the numbers "22", "7" and "22" on their social media accounts, fueling speculation that content would be released on 22 July. Hanni debuted as a member of the group with the
surprise-released single "
Attention" on 22 July 2022, without any prior promotion or information regarding the group's lineup. Since debuting, two songs released by NewJeans have featured lyrics written by Hanni: "Hype Boy" and "OMG". At the hearing, Hanni expressed gratitude for the assistance of the Australian Embassy and was concerned about her
Korean language skills. The case was later dismissed by the government agency, with the rationale that
K-pop group's members are not classified as workers and are not entitled to labour rights.
Return to ADOR On 29 December 2025, it was announced that an agreement had been reached for Hanni to return to ADOR. ==Other activities==