• Captain Yoo Shi Jin, played by Song Joong-ki, is using his rifle scope to spy on Dr. Mo Yeon (Song Hye-Kyo) while washing her face outside the base camp.

Captain Yoo Shi Jin, played by Song Joong-ki, is using his rifle scope to spy on Dr. Mo Yeon (Song Hye-Kyo) while washing her face outside the base camp. (Photo : Facebook/Descendants of the Sun )

Actor Song Joong-Ki has been fluttering women with his suave portrayal as a special operations soldier in the Korean hit drama, "Descendants of the Sun." Meanwhile, his co-star Song Hye-Kyo revealed that the 30-year-old icon as well drew much attention during filming after he made several no-good (NG) takes.

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Speaking today, April 5 at a press conference in Hong Kong via Soompi Forums, Hye-Kyo said, "Even though the drama is about a serious love story, the characters have their lighthearted moments and comical scenes. I remember Song Joong Ki laughs a lot, so there were a lot of NGs due to his laughing. But every time that happens he feels sorry towards the staff."

Both Joong-Ki and the 34-year-old actress Hye-Kyo attended the press conference. The two "Descendants of the Sun" stars were promoting the drama, which is set to air on new Hong Kong channel Viu TV. The 16-episode romance drama is available free on K-drama streaming site viu.com and Viu app in Singapore.

Featuring Joong-Ki portrayed as Captain Yoo Si Jin and Hye-Kyo as the female doctor that the former is in love with has garnered top ratings across the region, according to The Straits Times. "Descendants of the Sun" episodes 11 and 12 aired in Seoul last Wednesday and Thursday, garnering over 30 percent share of viewers. The hit drama surpassed global hit "My Love from the Star's" highest rating in 2013.

The publication indicates that "Descendants of the Sun" is the most viewed show on Viu online service in Hong Kong and Singapore. In March, approximately 60 percent of Viu's viewers in the two regions tuned in to the show.

Meanwhile, Joong-Ki unveiled that the drama's overwhelming popularity is due to its many aspects. Fans can see different scenes in the series, including disaster and action. In addition to a good love story, the drama also has variety.

Watch the sneak peek below for more information.