Check out the new trailer for upcoming drama 'Descendants of the Sun,' starring hot actors Song Joong Ki and Song Hye Kyo!

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The production crew, NEW, posted this new teaser on December 29 via Facebook, showing Soong Joong Ki leaning close into Song Hye Kyo and saying, "If you're a doctor, you'd have no boyfriend, right? �Because you're busy." �She replies, "If you're a soldier, you'd have no girlfriend, right? �Because you're hard and tired."

He wonders aloud, "I wonder who will respond." �You can check more of their chemistry in February!