Story: The story is kind of confusing (a few parts). How could they not recognise Seon Hwa as Sharon? Why did Jae Kyung and Jae Min keep changing hairstyles? Why did even Seon Hwa put a photo of Sae Byeok under the pillow on her and Jae Min's bed while she was posing as Sharon? This are just a few and I haven't even mentioned all, not only that, the progression of the story was very slowly, especially the part where Seon Hwa keeps clinging on to Sang Hyuk and the part where she transformed into Sharon. However, I like about how the story not simply just covers about Seon Hwa's revenge, it also covers on Seon Hwa and Jae Min's love story, and also Jae Min, Seon Hwa and Jae Kyeong's parentage issues.

Acting: The acting is overall very good, including Seon Hwa's and Jae Kyeong's acting, and the way they say the lines (the tone) and the facial expressions, although a small bit of the acting wasn't convincing enough, especially Sang Hyuk, and a small bit of the acting was bad, which was Seon Hwa's last scene at the last episode. However, there are some scenes that I remember very fondly because it was the best imo (mostly Seon Hwa and Jae Kyeong).

Music: The right music was used at the right time, but the thing is, why was the same music always used? The song that they mostly used was 'My Love', one of the OST tracks and it was literally used most of the time when Jae Min and Seon Hwa are acting together. Fortunately, the OST tracks are good and it was fun listening to it.

Rewatch Value: I won't recommend to rewatch, just only the best scenes, because the kdrama is 150 episodes.