First off, season one and two are essentially the same drama, only split into two parts. There isn't really an end to this "season", so this review will be based off of episodes 1-21.
The story itself is a very light hearted typical romantic comedy. It has the seemingly cold guy and a bubbly girl. I definitely had my differences with the female lead. She has a habit of lying and turning bystanders against whoever she is targeting (let's be real, most of the time it's the male lead). I found that incredibly annoying and unlikable, but perhaps that is why she is the "fox" in the title. That does stop after about the first ten or so episodes so she has grown on me since then. There isn't really a major over-arching plot, and as of yet, since it is the incomplete story, there hasn't been a climax. The only things that really propel the story forward are the relationship between the female lead and the male lead and the "love square" that they're involved in.
As I mentioned before, the female lead began as very unlikable to me, but the actress portrayed that role quite well. I felt that the male lead however, could be a bit more expressive. I understand that his role is supposed to be cold and stoic, but his expressions could use a little more emotion.
The music wasn't very memorable, but it wasn't unpleasant.
This drama isn't anything special or new, but it is an enjoyable watch. It's a good light hearted show to watch especially as a break between some heavier dramas.