First of all I know that most reviews probably revolve around the young men in this KD, but I want to start with Hwang Shin Hye as Choi Kang Sun. She is amazing in this drama!!! She plays crazy evil like a pro and brings that character to life!!! She manipulates EVERYONE and does it well. Wang Ji Hye as Jin Jin Shim/Mok Ga On also plays her character well. You can tell that she has Stockholm Syndrome in a major way. The story wasn't quite what I thought it would be, because it doesn't center around the bachelors as much as I thought it would, but it is still good. The child switch is the major issue in this drama and I thought that it was played out well. The acting was great. I really enjoyed all of the actors and they played their characters well. The bromance between the guys is cheesy and cute. I thought that the teens of the main characters did a great job and were too adorable. I think the dad should have taken more responsibility at the end, because I think that some of the reason that Kang Sun acted the way she did was because of him. However the ending was satisfying. I didn't give it much of a rewatch value because I probably won't rewatch it. It was good enough the first time. You should watch it though at least once.