In The Master’s Sun, episode 3, Joo Joong Won(played by So Ji Sub) helped Tae Gong Sil(played by Gong Hyo Jin) solve a problem for a ghost.
Previously, a lady ghost came to Gong Sil and asked her to help her reveal her husband’s affair with a younger woman. Gong Sil went to meet her husband, but the man treated her as a crazy woman, and pushed her away. As Gong Sil fell on the floor surrounded by the security team, Joong Won suddenly appeared and said, “What are you doing, looking like a crazy person?” Then he reached out his had to her.
Joong Won took out a shoe of the dead woman, and matched it with the shoe Gong Sil had. He managed to prove that Gong Sil was right. Later, as Gong Sil thanked him, Joong Won replied, “You don’t need to thank me. I just took my revenge.” He continued, “He not only betrayed his wife, but also my Kingdom. He secretly signed a contract with Giant Mall. Bastard.”
Credit : koreandrama