Overall 9/10 I've just finished the final episode so I have fresh point of view. For me drama started well, then continued being well and finished well. Everything was considered (I think it's very unique if we talk about k-dramas) and I wasn't feeling cheated by the whole story. Story 9/10 For me, as a big fan of sci-fi, storyline was great. Teleportation, telekinesis and time stopping made in a spectacular way, from technical side is first adventage of this drama. Chemistry between two main characters was really convincing. I must say that this show made me rather laughing uncontrollably than crying. The comedy site was really in my type. Some scenes could really make you cry, but for me, it was smiling through tears. That's why I wasn't never tired of this drama and I enyojed all the episodes. Despite of all this romcom we have here Lee Jae Kyung! He is hot, he is scary and I loved his parts. He introduced suspense to this drama, making it even more interesting. Acting/Cast 10/10 First time I really liked the male second lead! He actually didn't interrupt main leads, he was sweet and helpful. Good friend, that's all. Park Hae Jin did a great job. As well Hong Jin Kyung, maybe her show time wasn't so big, but she totally got me. Of course I'm bowing very low in front of a talent of Jun Ji Hyun. She was outstanding. Song Yi, very well made character, made my laugh, cry and proud of her. It was refreshing to watch female lead who isn't clumsy, is cute but also very strong and she knows what she want and she knows how to get it. She was a really proud woman and inspiration for me. And Kim Soo Hyun as Do Min Joon. Ok, at first I didn't like this actor at all, I don't know actually why, maybe I didn't like his earlier roles, maybe he is not my type. Whatever. But I must admit he was great there. I can't say nothing against his acting skills. His crying scenes was really touching. The guy knows what he is doing. And I loved the character he played. Likeable, smart and hoplessly in love. There were a lot of more remarkable characters I would like to mention. Like Song Yi's brother, who made me laugh all the time (especially in scenes with Do Min Joon). It may be strange but I really appreciate that the writers add characters like Song Yi's mom or Semi, I adore such bad persons, I can throw my hate at them and I feel cleansed from all the negative emotions. Music 6/10 Why only 6? Music didn't interrupt me, mostly fitted, but it wasn't very remarkable. Now I can't remember any of the tracks. It wasn't outstanding, that's all. Rewatch Value 8/10 I don't mostly rewatch dramas, but I think, someday I'll miss this show and rewatch for sure some eps. Mainly because of good sense of humour, and great chemistry between two leads.