It's really hard for me to give 10's, but this drama is the exception. I didn't have any doubts when I rated it, which rarely happens to me. It is known as the saddest series ever made, and it's not an exaggeration at all! If you like sad series, it's a must watch. I'm not going to spoil anything for you, but I must say that everything about this - the story, the acting, the cast and the music - is incredibly good. I've watched it three times already, and I still cried at least one litre of tears each time. Cheesy, I know, but it's true!