I watched this second time so it's time to write a review. I rarely rate any drama this high. If you are looking for a story that has action, humour, witty characters and of course, romance then you are going to love this. Now, I usually don't go for military themed dramas or in fact medical dramas either. I just hate to watch political scenes and "we have to explain this medical procedure with a 10-minute scene" kind of dramas so that's why I rarely start any drama with those themes even if it is highly recommended. So why did I decided to start Descendants of the Sun? When it aired it popped up literally everywhere; in drama sites, discussions, forums etc. I was slowly getting interested because the hype was huge. What finally drew me to watch DotS was a scene where Kang Mo Yeon drives a car, gets into accident and makes calls babbling about how she feels towards everyone. I accidentally saw this scene when it was shown on a variety show and I was like well, that looked somewhat interesting. Next thing I knew, I was watching first episode of DotS. Don't let first minutes fool you because this show is full of humour, funny moments and romance. Even if story deals with serious issues it takes a bit lighter approach to them than most of military/medical themed dramas. I was hooked after only one episode which happens veeeery rarely. It's difficult to get my attention in just one episode but DotS did it. It was mainly because main couple's chemistry was so good! Characters are likeable and you can find at least one character you will cheer on. Our main leads are charismatic and shine like no other. There's instant attraction and I like that about drama instead of watching hours and hours of bickering before they slowly come to like each other. Song Joong Ki does amazing job portraying Captain Yoo Si Jin; he is handsome but adorable at the same time and has pretty good sense of humour as well as he's responsible leader who does not fear to take action. Song Hye Kyo likewise does great job presenting Kang Mo Yeon, a headstrong doctor who is kind at heart. I loved watching our main couple and their witty dialoque with each other. I have to say I didn't like Song Hye Kyo as an actor before and that was one of the main reasons I was relunctant to watch this drama. But man, I wish I had started this earlier. Now everytime I try to judge and skip a drama based on theme or actor/actress I tell myself "look what happened with Descendants of the sun. It ended up being your favorite drama ever." Other side characters were important to story, there was no "extra" character filling up some plotline. This was propably one of the hardest dramas to pick which couple you like the best; main or secondary. I instantly took liking to Seo Dae Young and how he can make jokes with that poker face. He has cute serious personality (can I even say it like that :D ). Yoon Myung Ju shines beside Seo Dae Young, I think this is Kim Ji Won's best role so far portraying no nonsense, I get what I want kind of a woman. From other actors, Onew did pretty amazing job too. Yet again I was surprised by an idol actor. Only thing I didn't like though that his character was too wimpy in one point :/ Ok, the bad guys. They were pointed out pretty much from the start and I think David McInnis was right choice to play the part of ex-soldier turned gangster. He had this dark moody look and when he smirked it just gives chills. And minor bad guy Jin Yeong Soo played by Jo Jae Yun made me hate him so he did a good job. Something I didn't like about this drama is hard to find. But if I specifically have to point something out then it's events in episode 15. Hard to explain without spoilers but let's say that writers did one pretty typical korean drama plot twist. Otherwise this drama was really unique, had equal amount of seriousness to it as funny moments and romance. I liked how whole drama was filmed in advance so no viewers or whatsoever could affect how story would progress. Music was good, especially main theme song stays in your head after you watch episode or two :P So overall I'd say that give this a chance even if you don't like military or medical dramas. If you for example loved City Hunter drama, I think DotS is kind of similar but even hundred times better. (just my opinion).