This kdrama, can I say, is possibly the most fresh and unique show I've seen in a long time. It took someone so pure and cheerful as Hae Sung and gave him a second chance at fulfilling the love he never got to explore with Jung Won. He is possibly my most favoured character in the dramas I've seen because of his general goodness and kindness. The good thing about Reunited Worlds is that Hae Sung was able to bring happiness to his family and his friends as well as show to the world that he would never kill anyone. It was amazing from start to finish. However, and this is a pretty significant however. I am disappointed that the ending left me so unsatisfied. Kdramas are supposed to be uplifting and in this case, magical. It would be thought that because of this magic and fantasy, Hae Sung would defy the odds and stay on Earth with Jung Won. It would be amazing if he could continue his life as if the past 12 years had never happened- or if he could go back and prevent his death. Even aging the 12 years he lost so he was the same age as Jung Won would be nice... however, this is not the ending we received. Like I said, I am a huge fan of the drama and the characters, but I feel as if the ending didn't have to be the way it was. Of course it can't be changed and I realise it's very aware of how realistic it can be at times. People can never really come back and that is why Hae Sung had to go. I appreciate the thoughts gone in to this and yet I still can't help feeling cheated of a happy ending. All in all though, I am very pleased I watched this drama and I saw it through until the end. I very much recommend this drama but not to those with a weak heart lol.
Hope my review was helpful and good luck.