Wow! It's a first thing I have to say. This must be one of the best drama I have ever seen. With excellent beginning, middle and end and nothing, even nothing foreseeable. Of all the theories nothing ends like I thought and this ... this is excellent. The Story line: Was confused in the beginning, because of the 2/3 fases of the story. But slowly and without showing to mutch everything will get in the line. I like that, and what they did, they they put everything together. Bu they talnk about something important to, you memories and what they are to you, why is important to have them, even if they hurt you or make you sad they are important. Acting / Casting: Perfect! Kim Kang Woo was once again perfect. I did not know much about Gong Seung Yeon, but she was excellent at every stage of the plot, wow I have to keep an eye on her. Rewatch Value: over and over again.