Byun Sung-hyun: Byun Sung-hyun. Director: Kingmaker. Byun Sung-hyun is known for Kingmaker (2022), The Merciless (2017) and Kill Boksoon (2023).
Known For: Kingmaker (Director(as Sung-hyun Byun)), The Merciless (Director(as Sung-hyun Byun)), Kill Boksoon (Director(as Sung-hyun Byun)), Whatcha Wearin'? (Director(as Sung-hyun Byun))