In episode 10 of MBC weekend drama 'Dr. Jin' (screenplay Han Ji Hoon, production Han Hee), Kim Kyung Tak identified the man who was planning the assassin of his father and began to chase him down.

At the end of the chase, Kim Kyung Tak (Kim Jae Joong) and Hong Young Hwee (Jin Yi Han) faced each other and eventually entered a sword fight. Hong Young Hwee merely dodged Kim's offense, and Kim said to him, "Why are you not attacking? I know that you are the one who was after my father's life."

At the end of the sword fight, Hong Young Hwee held up his dagger at Kim Kyung Tak's neck, but could not slash his throat. As soon as Hong turned around to leave, Kim Kyung Tak seized this chance and cut off Hong's mask.

Having realized his close friend Hong Young Hwee had attempted to assassinate his father, Kim Kyung Tak stuttered in disbelief, "How could you..." Hong Young Hwee left the scene, and Kim Kyung Tak raised his head to the skies and yelled in frustration and betrayal.