Woah, I can't believe that I have finished this drama in... 3 days! I didn't even wanted to watch when I found out about it, because the poster is so ugly in my opinion (yeah, I'm superficial), it has 21 episodes and I don't really have the patience, and the story sounded silly for me. But I decided to give it a try and I regret nothing! As I said, the story sounded kind of silly. A perfect-looking alien landed on Earth 400 years ago, and then he falls in love when he has only 3 months to stay on Earth. But as I watched it, I really enjoyed it. I really liked the references to the past. Some were very sad, some were just hilarious. I really liked how the story went, how the comedy was so nicely combined with the melodrama, and with the supporting story (if I can call it that way). The acting was great, and the actors did an amazing job! I actually lived with them the happy, and even the sad moments! I really liked all the characters. Kim Soo Hyun was amazing in the role of Min Joon (or should I call him Da Mon? lol)! Also, Jeon Ji Hyun was great, even if in the beginning I didn't really like her, she did an amazing job! And Song Yi was a really great character, I have often identified myself with her. Park Hae Jin also was good, and I liked his character a lot. As much as I like Yoo In Na, I think that she didn't sell her character quite well, she just seemed sweet and innocent all the time, even when her character was technically showing her teeth. The music was great, I really enjoyed the OST! As a rewatch value, I gave it a 9, because I may want to watch it again in the future, I really liked this drama. Overall, I give this drama a 9.5. If you want to watch a drama where you can laugh, and cry at the same time, where you want something serious, but not too many complicated things, misunderstandings and bullshit between the leads, you should definitely watch it!