There are many reviewers who already gave 10 to this drama. Not much to add as to how good it is. Many people think it's the best by the Hong sisters. It topped the TV chart for 5 consecutive weeks when it was aired. It got 13 awards (including 7 MBC Drama Awards) plus 13 nominations. It was so successful that its rights were sold to 5 countries. So I just want to add, for those who commented that the ML is abusive, mean, and so on, that his character is not that of a mean guy, but of a spoiled, arrogant man due to what he overcame after being ill for so long. But his heart, who never opened to another person before, is a gentle heart. We can see it when he's regretting doing something, or when he helps the FL from the very first episode. In fact, this is one of those rare dramas where the ML realizes very early on that he likes the FL. I've watched many dramas, and this is still one of my 5 all-time favorites. The chemistry, the original plot, the laugh-out-loud moments, not secondary annoying characters, no cliches, the little kid... Such a treat.