In "Kill Me Heal Me" Ji Sung changed his personality from Shin Se Ki to Cha Do Hyun. Nonetheless, he was even stronger than before.
On the 12th episode MBC Wednesday/Thursday drama "Kill Me Heal Me" (script Jin Soo Wan, director Kim Jin Man, Kim Dae Jin) broadcast on Feb. 12th, Cha Do Hyun (played by Ji Sung) was completely confident in front of Cha Ki Joon (played by Oh Min Suk).
Ki Joon had been hurt by Do Hyun's personalities. When he was with the personality of Shin Se Ki, Do Hyun would say whatever he wanted and would snap in front of his lover Han Chae Yeon (played by Kim Yoo Ri). He pushed Do Hyun to the wall and said, "You change from one thing to another and your concept changes but please just made something clear." With this, he was extremely upset.
Nonetheless, Do Hyun was calm. He said, "If your feelings are hurt, I'll apologize. From time to time, you just want to go wild and go at it. I think a lot of things had just piled up." With regards to Chae Yeon, he also overpowered Ki Joon and said, "Do you really not have such confidence?" Do Hyun said, "I have no feelings against her. Don't unleash your anger on me. It looks cheap."
