Kiwon

On June 12, 2025, he was introduced as a contestant of Mnet's survival show Boys II Planet as an individual trainee. On July 17, 2025, he was eliminated in episode 1 after unable to pass the Class Placement Match Test. On September 22, Kiwon was introduced as a member of AmbiO.

The group made their debut on March 18, 2026 with the mini album Boys Be Ambitious.