Heart is the King

Cast:

Im Yoong (23 years old), he just graduated from architecture major of Yonsei University. And then he got job in one of famous construction company in Seoul. He didn't follow his parents and his sister who has a job that appertain with the healthy sector. Before his parents left, they were doctor in Seoul Hospital and the lecture of medical's major too in Yonsei University, while his older sister is a doctor too in Seoul Hospital. He is a choding but he will come serious if it comes serious things, bubbling, friendly and a gentleman. He really cares and loves his girlfriend. Until he didn't realized something fishy between his girlfriend with his childhood friend. But then he met her sister's good friend. And everything is change.

Jessica Jung (27 years old)  is a doctor in Seoul Hospital. Maybe she has cold aura, and unfriendly when we didn't know about her yet. But she is warm, kind and friendly when we are knowing about her. Her parents are the owner of the hospital, where she works at. She has engaged with someone who is one of her father's friend's son. Yes she felt happy and comfy at the first time, but then she realized she didn't love him. It's just like a good and close friend feeling. And everything has change when her good friend's brother comes to her life.

Tiffany Hwang (24 years old) is Yoong's girlfriend. She is a model of fashion magazine. Yes, she is really in love with her boyfriend until she met her boyfriend's childhood friend. But then, she realize something and regret that it's just a current feeling, and she want to back again to her boyfriend. She will do everything so that her boyfriend  back to her again. Can she?

Kwon Yul (24 years old) is Yoong's childhood friend that comeback from Tokyo. He is a photographer. He always respect, comfy, and get along with Yoong . But it different when he met Yoong's girlfriend. 

Im Eun Hye (27 years old)  is Yoong's older sister. She is a doctor too like Jessica, even both of them are a good friend since they were in college. She's really care with her young brother, because he is one and only family that she has after their parents had left because of an accident when they did seminar trip in Singapore.

Others:

Lee Jinki

Choi Sooyoung

Krystal Jung

Seo Joo Hyun

Park Yoochun