Yuseop

On December 29, 2022, Yuseop was introduced as a contestant of Boys Planet, which will air on February 2, 2023. On March 2, he was eliminated in episode 5 after ranking 85th place. On March 28, 2024, he was officially introduced as a contestant of MAKE MATE 1.

During the show's finale, he was revealed to have ranked 7th overall, thus making him a member of NouerA. On November 27, 2024, Nouer Entertainment announced that Han Yu Seop had changed his stage name and would simply be going by his first name Yuseop from now on. The group made their debut on February 26, 2025 with the mini album Chapter: New is Now.