I had high hopes for Happiness. The premise of the show was exciting and unique for a K-drama. The lead actors were great, with fantastic chemistry and good supporting actors. However, the plot tanked this great project for me. There are many gaps in the story-telling that took me out of the drama too often. Characters would do these outlandish, reckless, and unrealistic things time and time again. The plot armor was aggravating. The main leads relationship is the only reason why I managed to finish the series but I don't recommend this to anyone unless you have nothing else to watch.