I love protective men. This bodyguard (Rain) is so tough and gentle at the same time. I liked the scenes where the protagonist couple acts together.
In the last two episodes I found things that didn't add up to me and I lowered my rating a little. Examples: The "Chinese" bodyguard was stabbed and the next day he shows up at work like nothing? One shot from this men would have been enough for her to be killed or stopped but she always managed to escape. O Wan Su hears the shot and takes 10 minutes to get to the living room? She cries so much over her husband's murder that she doesn't realize the situation. Then the next day as if nothing had happened. The mother-in-law then forgives her illegitimate son for killing the beloved son to whom she wanted to give everything?
But all in all I recommend watching this series.