Good chemistry between the mcs. But they should have just focused on their cute couple moments. No need for the love triangle drama... If they wanted tension they could have used a dozen different ways to achieve it. Like the age gap and different desires and goals in life etc etc are right there and were enough to make them quarrel, become bitter, get back together etc. If you like old fashioned plot in cdrama then it isnt something you havent seen. The first half was better. They really built up on the chemistry so they should have kept the plot up by that instead. If you dont focus too much on the details though it leaves a sweet feeling overall.