I absolutely loved this drama, I was so addicted to it and cried a couple of times. Honestly this feels like the perfect drama, I got so emotionally involved and I loved the supernatural side to this romance as well. Literally star crossed lovers. My only thing I can nitpick at with the story, which I even feel bad about doing, is that really it went into no depth about Do Min Joon's planet or family or anything really. It only went into detail about his superpowers and his feelings on Earth. I also felt that Chun Song Yi, was a bit of a shallow character, I mean at first I didn't even like her, I thought she'd be the evil second female lead. The other gripe about her character is that the girl she resembled in the Joseon era, which was a really interesting plot point was never really resolved. And whatever became of Lee Hui Kyung? I guess it's a testament to the story and the actors that despite these slight faults I still absolutely loved this drama. It's got star crossed love, superpowers, mystery and suspense all in one. Definitely a must watch!