This is my first review on here and I have watched a number of dramas and thought about writing a review but this is the first one where I knew I had to write one. I am not sure where to start with this drama as this is an amazing drama. Probably one of the best dramas of 2015 if not the best. I could talk about how great this drama is for a long period of time but I will try to make this review as short as I can. First things first. I started watching this drama as soon as it came out because I found out about it a month or so beforehand. As soon read the synopsis I was hooked. I have never seen or heard of anything like that for a Korean drama. So the synopsis is what drew me in but seeing who was cast as the lead characters made me want to see it more. The only thing I was worried about was where they going to be able to pull off a drama like this. Well my worry went away straight after the first episode and left me blown away. Some dramas start really great but then start to slow down and others take a few episodes to get going. While watching D-Day not once did it slow down, it continued the momentum it started and kept it going through all 20 episodes. I never felt bored or tired and each episode left me wanting to watch the next one right away. Story The story for this drama as I said before is something that I have not seen or heard of for a Korean drama. I was worried how it was going to work out but it was done way better than I expected. The special effects and sets they had made it more realistic. What I really like about the story is that it is so believable. This is something that could happen and I think that is what first drew me to it. I am a person who loves romantic type dramas but what I like about this one is romance is not the main feature. The romance is there but it focuses on the disaster a bit more. You get to see how the doctors and other emergency workers deal with a disaster like this. If you are a person who loves romance in your dramas and likes shipping the main leads together then I will say this drama does have that. It does have some sweet and cute moments admits the tragedy that happens. So don’t worry about that. Acting/Cast The cast for this drama I think is perfect. I loved all the actors and their characters even if some characters where not so good. Kim Young Kwang does a phenomenal job in this drama. I first saw him in Love Rain and every time I saw him since he has played a supporting role or played the second male lead. So I loved that he was finally the main lead in a drama and boy did he do an amazing job. He is such a great actor but in this drama you can see just how good he is. Jung So Min played the female lead and also did a great job. I first saw her in Playful Kiss and while watching this drama you can see how much she has grown as an actress. She plays a doctor in this drama just like Kim Young Kwang and does a great job at it. I really liked her character and also Kim Young Kwang’s. I think both lead actors had great chemistry together and I would love to see them both again in another drama. Also loved the other actors in this drama. A few of them I recognized and had seen before and loved seeing them again. Music The music in this drama was so good. Most dramas have about 4-5 or more OST songs that have music and lyrics but this drama only had 3. But the 3 it had were so good and fit the drama perfectly. One of the best parts about the music was the instrumental/Score soundtrack for the drama. It was amazing to listen to and scored so perfect for the drama. So in all the music is really good and I have already bought the 3 OST songs that were released. I also plan to download the rest of the soundtrack once it’s available on iTunes and possibly buy the physical soundtrack as well. That is how much I just loved the soundtrack. Rewatch Value The rewatch value of this drama is so high for me. Actually while I was watching this drama I went back and rewatched a few episodes. This is a drama that I would defiantly rewatch from start to finish a bunch of times. I will probably watch it again very soon and this time introduce it to a friend. Since I watched this drama by myself it would be a great drama to watch with a friend or friends. Also if this drama comes out on DVD with English subs I will defiantly be buying it. I highly recommend this drama as everything about it was so good. All that is left to say is if you are reading this and trying to decide if you should watch this what are you doing. Go watch it now. It is a must watch drama that should not be missed. One of the best or if not the best drama of 2015.