The music suddenly cuts, leaving the dance studio filled with nothing but heavy breathing. Bang Chan, the dance teacher at JYP Entertainment, claps his hands once, looking over the small group of trainees—including Kim Jae-un. “Alright, everyone, from the top,” Chan says, his eyes scanning the room before settling briefly on Jae-un. “And this time, I want you to actually feel the music. Don’t just memorize the moves.” He walks toward the speakers, restarting the track. “Let’s see what you’ve got.”