If you're considering watching this drama, do it. This is my first time writing a review about a drama because that's how good it was and how much I want others to see it. Story ? this is such a brilliant story; I found myself clenching my jaw and utterly glued to the screen from the thrill and suspense it held. The writers and producers for this drama did an incredible job at keeping the viewer hooked from episode one to fourteen. The plot is interesting and the twists in the story make perfect sense and fit the story as well. It focuses more on the medical aspect and the major issue involved with it without forcing the 'love' romance idea down your throat like any other drama. The leads slowly ease into each other without it feeling forced which was amazing in my eyes. I couldn't stop crying with each episode. It doesn't fail to deliver a bit of comedy in between. Some of the characters do get scenes of their own where you get to see their struggles and the way being a doctor affects each one, gets you really connected to the rest of the medical crew. (Dr. Yang Sung Eun and his friend/Dr. Lee Shi hyun and the heart transplant patient, etc). This show was cut down two episodes short which got me really upset since this is such a good drama. Even so, they closed the drama really cleanly with a beautiful ending, nothing left unsolved and it doesn't feel rushed or forced either. Acting/cast ? The entire cast did an amazing job, especially Jang Hyuk who gave a brilliant performance at playing such a difficult character. I personally really like Park So Dam, I think she's absolutely gorgeous and very natural when she acts. Her character (Jinsung) was very irritating at the very beginning but I suppose it was set to be this way by the producers until you slowly warm up to her in later episodes.The chemistry between the two leads was great (everyone talk about their age gap but I really didn't care of even took it into account). The cast does a great job at playing each of their characters and they never fail to make you cry with the way they play out those tear jerking scenes. They did a great job. Music ? I'm so in love with it, it's by Bernard Park which I adore his voice ever since he was in KPOPSTAR. They couldn't have chosen a better singer for this. The OST is beautiful, it tugs on your heartstrings immediately once it starts playing. Give it a listen for sure. (DIRT by Bernard Park) Aside from the main ost, they did a great job to use instrumental music instead of sappy OST's like every drama shoves at every single scene so it was refreshing. They put the right music in the right moments to get the right mood. Overall, I recommend anyone watch it and even though you might not like the first few episodes I suggest you continue because you do warm up to everyone and the story gets better with each episode. This is a gem you must not miss! Definitely on of my top favorite dramas.