Story: This is a rather straight-forward story that incorporates a medley of elements from friendship to sci-fi. It is rather difficult to describe the story without giving the story away. All I can say... it's an interesting take on a well explored sci-fi theme. There are a couple of important messages that this drama tried to address, albeit to some degree of success: i) The consequences of our reliance on technology, 2) The consequences of our greed and curiosity. There's a little bit of romance in it, but it is not the main theme of this drama. Acting/Cast: Acting is good but not amazing. What sets this drama apart from others is the style of filming. The drama has a rather realistic and rustic feel to it. I must admit to frowning a lot in the first episode because I was not used to the way how the scenes 'move' a lot - like how you are watching a semi-professional home-made video. Eventually, however, I got used to this style of filming. There was none of the polished feel of the bigger budget 'mainstream' dramas. Even the special effects were minimal and low budgeted (mostly just light play). Yet, despite all of these, the story was good enough to make you want to click for the next episode (out of curiosity). It also helped that each episode runs for only 30 mins - kept things tight and concise without the audience losing interest in the story. Music: Music was mediocre. Rewatch value: This is a drama that you should watch at one go but once you know the story and its plots, you may not want to revisit it anytime soon. Overall: If you have 6 hours to burn and do not have any excellent dramas you have not watched, this is a good alternative. Takes a while to get used to the different filming style, especially if you'd gone from the highly polished Korean dramas to this one. This drama is neither bad nor excellent. It sits somewhere in between as a fair entertainment.