Why I watched this drama? I saw that the drama was new and I really like Jang Geun Seok. Due to the good comments and marks for the drama I thought it would be good to watch it (at least the beginning) After I watched the first/ second episode? I stopped to watch the drama because I thought it was boring since you already know what will happen between the parents when you read the plot. Why I continued? Like I said I like the actor Jang Geun Seok and I hoped that the drama would get better... In the end? It's amazing. After the first two/ three episodes I really fell in love with the drama and thee characters. + -The cast acts really good. Sometimes you could see that its really only acting but that's not very often -I really like how they managed two change the looks of the two main leads. And also the difference between the years -The former main characters appear again (that's not a spoiler since its written in the cast) -The story may seem familiar etc. but in the end this drama gives a whole new feeling than some others which seem similar - -The beginning of the second romance seemed quite rapid -The episodes of the first romance could have been a little bit shorter (since you know what will happen after reading the plot) RESULT: I don't think this drama is a must-watch but I think its a great drama and I recommend watching it