Korean actor Song Joong-ki has been setting female hearts fluttering with his suave turn as an all-action special operations soldier in the hit K-drama Descendants Of The Sun.

During filming, the 30-year-old heart-throb also created lots of heart palpitations because he caused a number of no-good (NG) takes, revealed his co-star Song Hye-kyo.

The 34-year-old actress said: “The characters aren’t very serious at times. So you’ll see funny parts here and there. Joong-ki and I both laugh a lot. We had to stop filming sometimes because we were laughing too hard. I remember how bad I felt for the staff at the shoot.”

She was speaking at a press conference in Hong Kong recently, which also saw the attendance of Song Joong Ki. The romance thriller – starring Song Joong Ki as Captain Yoo Si Jin and Song Hye Kyo as the female doctor that he is in love with – has garnered top ratings across the region.

In Seoul, Descendants has scored ratings above the 30% share of the audience, surpassing global hit My Love From The Star’s highest numbers in 2013.

The show mixes together a variety of genres, sometimes awkwardly within one episode, but Song Joong-ki seems to think that is its appeal. He said: “You can see different kinds of scenes in the drama, there’s action, there’s earthquakes. But we still consider it a romantic drama. There are many couples like me and Hye Kyo, as well as (the couple played by actors) Jin Goo and Kim Ji-won in the drama.”

At the press conference, he oozed confidence and charm just like Captain Yoo, his first role after completing his two-year compulsory military stint last year. “It feels very natural for me to be in a soldier’s uniform since I just left the army not long ago. The uniform feels like my regular outfit,” he said.

Not forgetting to compliment his beautiful co-star Song sitting next to him, he added: “Do I need to rate her look in the drama too?” Then he quipped in Mandarin: “Ta zhen de hen piao liang (She’s really pretty).”

Descendants Of The Sun airs every Wednesday and Thursday at 8.55pm on KBS World (Astro Ch 391) and is also available on Viu.  – The Straits Times, Singapore/Asia News Network/Gwendolyn Ng