Sea

In late August, ChoCo Entertainment revealed Jiwoo during their August monthly evaluation as the newest trainee to join ChoCo1&2. Just a little over two months later, on October 19, 2024, it was announced that Jiwoo had decided to leave the trainee group and ChoCo Entertainment. On September 19, 2025, it was reported that Jiwoo joined Monster Brain and became a member of their pre-debut girl group S2IT.

They are scheduled to debut in January 2026. On November 25 she was introduced as a member of the group, now using the stage name Sea. On March 14, 2026, she debuted in S2IT with the release of their first digital single What I Want.