Former LOONA member HeeJin is currently preparing for her solo comeback, according to media outlet reports on August 3 KST. 

Fans of LOONA will know that HeeJin was introduced as the very first member of the 'Monthly Girls' project, which signaled the beginning of LOONA, in October of 2016 with the release of her solo track "ViViD". She then went on to promote in the LOONA unit 1/3 in 2017, before LOONA's 12-member debut in 2018. 

After parting ways with BlockBerry Creative earlier this year, HeeJin signed on as an artist with Modhaus alongside fellow LOONA members Kim Lip, JinSoul, Choerry, and HaSeul. The five members soon kicked off activities under the name 'ARTMS Project', with the unit ODD EYE CIRCLE making a successful comeback in July. 

Next, fans can look forward to HeeJin's solo comeback album, set for release some time in October of this year.