The child actors were surprisingly good, even better than the lead actors. The drama started out interesting and it was fine even till episode 14-15 but after that seemed like the story just dragged on and on. They could have gone without a few episodes. I had been a huge fan of Kim Soo Hyun from Dream High and had a lot of expectations from him in this drama. He did just ok, could have been better. Seems like he gets too loud for no reason in some scenes. Han Ga In always has the same expression throughout the drama. Had it not been for the child actors, I would not have given this drama 4 stars.