The group consists of ten members: Minjae, Junmin, Sumin, Jinsik, Hyunwoo, Junghoon, Seeun, Yujun, Hunter, and Yechan.

[5] On August 20, KQ Entertainment released a YouTube video featuring all ten members together for the first time performing choreography to "Iffy" by Chris Brown.

[6] In September 2022, for the finale of Ready to One, KQ Fellaz 2 released the music video for "Geek", a song composed and produced by Minjae.

The video paid homage to the self-composed song "From" by labelmates Ateez and was uploaded to KQ Entertainment's YouTube channel on September 17.

[10] On March 15, it was announced that the group would hold a showcase the day before their debut at the SBS Prism Tower Auditorium and that it would also be broadcast live on KQ Entertainment's YouTube channel.

[22] On December 20, 2024, KQ Entertainment announced that member Junghoon would be returning to group activities at the beginning of January 2025 following his extended hiatus.