This is one of those Korean dramas that has so much potential at the start, but about five or six episodes in, it just dies out because producers restructure everything for ratings and not for story. ~Throw in all the Korean drama clichés! All of them!~ Ugh. You can pretty much go down a check list of typical Korean drama scenes, and this drama will have them all.
The best (read: only) way to watch this show is to fast forward through all the unnecessary/terrible scenes. First, all the chaebol family scenes, starting from about four or five episodes in. Second, all the Yewon or mistress scenes; they add absolutely nothing to the main plot. Third, all the Yoonha & Joongi scenes, starting from when Yoonha finally figures out Joongi's real intention. What you'll have left are all the scenes with Changsoo and Jiyi. That couple is the only reason why you should even bother with this show.