This show is very very good. I am not a drama expert and I have my own taste, but if you are looking for a drama that have a good story, character having a background, not too heavy, but still there. I find the acting quite good, not the best I have seen but it was not terrible, the acting is good enough to not take you out of the watching. It's a simple storyline, but IMO they executed it well. Things are not too messy, but it is still interesting to watch. I don't think there is any part to "skip" personally I found them relevant. I think they represented well the introversion, as one myself I felt particularly connected to Diew. I rarely see my type of behaviour in a show so it was refreshing to see the focus on introversion and extraversion here. I recommend this title!