During a well choreographed fight scene between Mok Dan and Chae Hong Jo, netizens were able to notice the latter’s face morph. To make the scene appear as realistic as possible, the production team decided to use a stunt double to complete the difficult fight scene. Unfortunately, the camera captured the stunt’s face during the sequence. For a split second, I thought Chae Hong Jo’s true nature and appearance surfaced. teehee.