Also known as: Kim Woon-hak, 김운학, 운학, BOYNEXTDOOR, 보이넥스트도어
Biography
Kim Woon-hak (김운학; born November 29, 2006), known mononymously as Woonhak (운학), is a South Korean singer, songwriter and MC under KOZ Entertainment. He is the maknae of the boy group BOYNEXTDOOR.
