Production Yoon Hong-jun Other Credits Pipeline Producer 2021 The King's Case Note Producer 2017 Bluebeard Line Producer 2017 The Treacherous Line Producer 2015 The Face Reader Line Producer 2013 Heartbeat Production Manager 2011 Blades of Blood Production Manager 2010 City of Damnation Production Manager 2009 Once Upon a Time Production Manager 2008 Agent-readable