Watching this movie placed me in a rollercoaster of emotions. I was happy, sad, angry, sympathetic, happy, sad, and it went on. The story was endearing, though I personally think the plot moved a bit slow. Or maybe I was just too sleepy at the time, and two hours was too much for me then. What I liked the most about this movie though was that I never expected to laugh so much. I thought it was a really heavy melo, but it proved me wrong. I think I may have laughed more than I cried. But the thing is, the moment I started crying, it was too hard to stop. The acting was very outstanding. Considering that Song Joong Ki barely spoke, his acting was really impressive. As for Park Bo Young, I never saw her in anything than this, but she's quite good. She just grew in me unknowingly as I watched. Overall, this movie is indeed a masterpiece, and deserves all the love it's getting. And I'm not saying this out of my love for Song Joong-ki. But then again, he definitely owned this movie. He is the heart of it, hence the title.