Gem performs with AZTER and is listed in member profiles as a main rapper, sub-vocalist, and member of its Zodiac sub-unit. His rap work is documented in Apple Music’s credits for “A STAR,” released by ASTER in December 2024.

He continued with the group following its rebrand as AZTER. On the 2026 album univerZity, his contribution to “Unlove You” caught the attention of Pop Journal, whose reviewer highlighted the Salbakuta reference in his part. These recordings offer listeners examples of his rap performances across both chapters of the group’s career.