Many fans are showing their affection for Kim Jae Joong once again because of his relationship with Jin Yi Han in 'Dr. Jin'. This is not the first time he has received such attention for his relationships within a drama. He also received much support for his relationship with Wang Ji Hye in his past drama 'Protect the Boss'.

In episode 19 of 'Dr. Jin', however, his character Kyung Tak's relationship with Yi Han's character Young Hwi becomes very complicated. Young Hwi finds out the truth about Kyung Tak-that he is a double agent.

Kyung Tak explains to Young Hwi that he is not a double agent. It is just that they believe in protecting two different worlds. Young Hwi is hurt because he wants to trust Kyung Tak, but accepts this reality. Viewers are empathetic towards the two characters who cannot move forward in their relationship. They display the emotions of real life. Therefore, viewers have even nicknamed this unfortunate, but moving relationship as the 'Tak Hwi Couple'.

Kim Jae Joong's fans praise his ability to draw out the empathy of viewers through his relationships with other characters. He is able to portray the essence not only of his character, but also of his counterparts, ultimately gaining the support and sympathy of many viewers.