Every single actor in this show was utterly amazing. There was such raw emotion and feeling in it, i love it so damn much. I can never rewatch it without tearing up. The soundtrack is beautiful too. This is by no means a lighthearted show, its heavy and complicated and makes you feel things which is the best part, I cried with the characters and was frustrated on their behalf for the way things unfolded for them. Sometimes the female lead was very self pitying and a little annoying but it did not take away from the story at all. I am absolutely in love with the leads of the show and sobbed at the last episode. The OST music of this show is some of the best I've ever heard, i loved it.