Just recently finished watching this drama and decided that I had to write a review of it. While this is not the type of story line I enjoy usually, I decided to give it a chance and I haven't regretted it (I watched the entire drama in two days.... despite having a job). STORY: The story is a time jumping one, specifically man jumping 200 years into the future. While time travel is usually overdone (this and Rooftop Prince where the two Korean time traveling dramas of the season) it feels very fresh. One thing that usually annoys me about time-travel romance dramas (especially Asian ones) is that the time traveling mechanic takes second place to the romance. This is a problem affecting many sci-fi Korean/Japanese dramas (Secret Garden in particular). However, they gave the time traveling device rules and stuck to those rules without having to over explain. Some would argue that in the end the rule is broken, but that isn't the way that I read it. Also, both the past and present time segments have very developed and enjoyable stories. Also, while there are other love interests in the drama the main characters are never really tempted which is nice since the story isn't focused on over dramatic love triangles. If the main characters stop believing in each other they always have a legitimate reason. As for the historical aspects, the various changes always feel natural and never forced (when time travely changes occur). Outside of the time travel, the politics are easy to understand and well explained thanks to both the explanations in the future setting as well as great cinematography in the past settings. Although not all these character's get a lot of screen time, their roles and actions are always clear. My only complaint is that Lady Jang in both past and present is used in the beginning and the end but almost absent from the middle. I would have liked to see more of that character since she should be an important figure in the plot. The story is definitely top notch in both the sci-fi, romance, and historical drama fronts. ACTING: The acting in this drama is awesome and I can't think of any complaints. The two mains are truly fantastic and have great chemistry (at the time of this review they are dating). All the support roles are believable in both time periods. I think that the entire cast all just had great chemistry together and I wouldn't change a single person. MUSIC: I want to give a higher music score, but now that I've finished the drama, I can only really recall one song. While the music in the drama is well paced with the scenes, none of the themes really made a lasting impression. The music definitely plays second fiddle to the story. RE-WATCH VALUE: RE-WATCH THIS DRAMA! I started it again immediately after I finished it. The story is just so intricate and engaging that I couldn't help it. While you know how it's going to end and most of the surprise moments, re-watching can give you a better understanding of the time traveling aspects. Understanding the historical parts in-depth allows you to understand the main man much better. OVERALL: I think that everyone should watch this drama. It has a great production value and story. Definitely an example for future sci-fi dramas to follow. In my top ten.