It's just my opinion, but I think this drama is highly overrated. The story has a very simple plot which is not unusual in k dramas. However, the characters were one dimensional and way too cliche for me. Lee young Joon was a character with good potential in my opinion. I had hoped he would mend his ways and become less narcissistic after he got into a relationship with Kim Mi So. However, his character doesn't seem to have developed at all even at the end. The way he fell in love with her was also forced in my opinion as he first only had a an obsession with her and didn't want to leave that childhood friend of his and it's not clear how this obsession turned into love. I also felt that the couple never really faced challenges, fought or had any sort of disagreement. I also found it ridiculous that they married each other without even 1 disagreement. He also put her to hard work for nine years and developed feelings for her suddenly. The positives in the story were the humor and side character development. The backstory was honestly ok in my opinion. It had its effects in the future and was hence essential and unavoidable. Mi So's character was what I disliked the most. Even after she got into a relationship with Young Joon, there didn't seem to be much of a change in the boss-secretary behavior as Mi So still acknowledged every ridiculous thing that Young Joon said and carried it out as a secretary more than a girlfriend. Also, I didn't like the fact that in the end Mi So decided not to quit her job as secretary. The reason she wanted to leave was to follow her dreams and I believe she should have given more priority to her own dreams and left to fulfill them. That's pretty much why I didn't like this series too much.