This drama started well, the first 10 episodes were really interesting but from episode 11~ it started to be boring and unbearable to watch.

Story: Started well but not so original. I've seen things like those beofor (rich boy -poor girl) but it looked interesting because it had the idea of that poor girl faking her identity and entering the rich family. I thought that the psychological part will take a bigger part in this drama (I almost even didn't see it) that's why I had hopes. As I said before, the story at first was pretty interesting because each episode ended in a cliffhanger so that I really wanted to see what's next. After that, it was dragged until the end, nothing has really changed from episode 1 until 20 in the plot. I think that they could make it a drama of 12 episodes.

Characters/Cast: I don't think that I can say that the whole cast was horrible but Soo Ae was terrible from the beggining. Her face was a pocker face most of the times (even when she had to show emotional expressions), I didn't see any change in her character. I was excepting that she will change, have guts with pretending to be another woman. But at the end she wasn't charismatic untill the drama ended, didn't pretend well, was always caught. she was REALLY annoying to a level that I was literally  suffering watching her. I couldn't agree with her behaviour- I mean, this is for her future and life, she could make a better acting and not be such an angel and so unrealistic.(even Eun Ha was a better character than Yi Suk)
Min Ho - was a fine character, didn't find him very appealing, I thought that he wasn't interesting. I don't even know how they fell in love, their relationship was pathetic, I thought that this kind of drama and situations will make them be "madly in love" but they didn't have any deep conversation or just normal conversations. Seok Hoon- He was scary at first but I just grew to learn that he was just a flat character, they could have showen more of his past and intentions and the way he tried to control Yi suk was pathetic at the end, their "trying to be psychological converstations" were just empty and leaded nowhere.
Mi Yeon- She was flat as well, I could see only her bad sides. I could feel for her sometimes but she was only -jealous- or only -insane- Even the supporting characters weren't interesting enough to watch (althought I love Hoya and wanted to see more of his character)

Music: Don't remember it, and don't think that it has a memorable song.

Other points: -I think that for at least, if the drama has a typical story line, it should have good characters/good romance. but this one was disappointing, I didn't feel their love, didn't feel that they were fated, I wanted them to get deeper and deeper into their past, into their lives and althought that they are different, they were meant to each other, but.NO. -The ending was bad . I didn't think that the ending could be a happy one, since althought YI Suk was threatened to pretend to be another girl, she made a crime, and even if she gets punished, she can't live-happily - Also the others; the villian, the character, Soo Ae's family and friends-they didn't show about them and about the tragedy of loosing her. But what they showed was a sentence about "how we should live our life and it's meaning"It wasn't even RELATED to the episode/the whole story. If I wanted to think about life's propose I could have read a book, so I'm sorry but this one was a failure. The reason I gave it a 5 was because of the 10 first episodes .

Rewatch Value: Will just be a waste of time.