This drama made me cry so baaaaad! I would have to say that the ultimate magic behind this drama were Kim Yoo Jung and Yeo Jin Goo. Those two child actors completely set the tone for the rest of the show. Their acting was just so impeccable that it makes you believe in love and promises. The drama made my heart break a million times over and over again. The meeting between the two was so perfectly cute made their parting a million times more painful. The OST sticks to your head, it was easy to the ears and to the head. The music was also perfect for each of the scenes that they were placed on.