I scored this drama a perfect ten simply because.. the story is so unpredictable.. that I think makes us viewer eagerly wait for the next episode to be aired.. If your not patient I don't really think you can appreciate the story.. The cast really fits the role they portray.. Music thumbs up to Song Joong Ki for the OST.. ^-^ You will totally experience mix emotions and even fall inlove with the character.. Just give it a try...Watch it and for sure you won't regret it.. Enjoy watching.. ^-^