At the beginning of the drama, the first few episodes were hard to get through. Maybe it was because the story hadn't taken off yet, but it took a lot of concentration to finish an episode, but the story finally started to take off. I had high hopes for this drama, and it seemed like it was heading in the right direction. There was enough of that awkward relationship going on between the two leads, as well as the suspenseful drama that has you sitting on the edge of your seat, but somewhere during the middle of the drama, it completely lost it's appeal. The main focus turned to one of the characters who isn't even a part of the main cast, and it seemed like that character took over the show. The relationship between the two leads practically stopped since all they talked about was that other character. There was hardly any romance in this drama except for the very last episode. The drama is great if you throw away all expectations of romance, and just focus on the mystery in the drama. It was a good drama, I just feel that the two leads didn't have enough screen time together. The acting was great, especially Lee Si Young. She did a great job, and really expanded her acting ability. I felt that the actors were the best part of this drama, and if there would have been different actors to play the characters, this drama wouldn't have been good. The music was great, it was a catchy song, but I don't think it went with the whole suspenseful mystery theme that took over the drama. It would be ok to rewatch if you really like more mystery sort of dramas, but for someone who likes to watch more romantic dramas, it wouldn't be worth rewatching.