I started watching this drama, because of the main couple. I watched them in Secret, so I wanted to watch something else related to them. My first impression that this drama left on me was good. The storyline is amazing. The writers did a great job. They really knew how to mess with a viewers mind. With this drama you will laugh and cry in the same time, and you won't be bored at all. Well, for the acting it was good. I can surely say that, Ji Sung mastered this role, he played a high school girl, I mean even if I am a girl I couldn't do that like he did. Amazing!!!! Hwang Jung Eum was good, I really like her, but the only thing that I didn't like is her yelling and screaming, it was a bit annoying. I really like their chemistry in this drama. It was cute and romantic. Oh, and the OST was amazing. Especially, Auditory Hallucination. That OST has a great power to cause outburst of emotion in the viewer. I really miss all of the characters. They really growth on my heart. I recommend this to everyone. Even if you are having some doubts, start it, maybe you will end up liking it. :D