JinJin

He made his debut as a member of ASTRO with the release of their first mini album Spring Up on February 23, 2016. On December 27, 2021, Fantagio announced ASTRO's second sub-unit, JinJin & Rocky, would be debuting on January 17, 2022 with their first mini album Restore. On February 28, 2023, it was announced that Rocky had left ASTRO after deciding to not renew his contract with Fantagio.

Thus, the unit is assumed to have disbanded. On October 12, Fantagio announced that JinJin will be releasing the digital single "Wave In My Heart" on October 19. On July 22, 2025, it was reported that ASTRO's third sub-unit ZOONIZINI would debut in August.