The leads acted wonderfully and emotionally. In terms of emotional aspect, this is the no. 1 Kdrama on my list. I am watching it again now. I love how the lead actor and actress were so comfortable with each other, their chemistry in this one beats all other casts in other Kdrama, including Crash landing on you. I always know Son Je Yin is a good actress from watching her in Personal Taste. I am happy to see Jung Hae-in acted beautifully in this Kdrama. The love in this Kdrama was warm, emotional, touching and moving. I love the feelings it has brought to me. The end was a bit abrupt. If the this drama has one episode about how struggling they were after the broke up, the emotion built up after they met each other again, more scenes on that, for eg. they met each other in more occasions then leading up to the end, it would be better. A love story does not need to have a big aside story along to become good, just simply focusing on the love of the couple, that is enough. Well done!