As is known, last year BigHit Music introduced Trainee A consisting of Yorch, Leo, Sangwon, Woochan, James, JJ, and Jihoon. Many speculated that this boy band would debut this year in 2022, but unfortunately Leo left in August.
Netizens are worried about the future of Trainee A, especially Sangwon, who is estimated to be the longest-serving trainee under the auspices of BigHit Music. Let's get to know this person who has stolen the hearts of Korean netizens even though he hasn't debuted yet.