That's how I would sum up this drama.
It's about different gender issues in real life and always ends the episode with a comforting message, giving you good advise.

While they do show clearly who's doing wrong and why this drama is not pointing fingers or using stereotypes we might expect which I truly appreciate.
Not every male being is an offender and not every feminist is a man-hating fury.
The drama deals with the negative perception of the term feminist and gives a good answer to that.

Here we have different personality types, Chae Ah is the outgoing type who has no problem speaking out when she thinks something is unfair, Ye Ji is the complete opposite being shy and introverted, worried about how speaking out could affect her social life.
I could relate to Shin Hye the most. She's feels that it's wrong of a guy to casually touch her leg while they are out drinking something with others but doesn't want to jump to wrong conclusions or misjudge anyone. She's thinking a lot before acting and also considers the other person. We get to see how she changes, learning that you have to listen to your heart and when something feels wrong it's okay to be sensitive about it and speak out.

It shouldn't be "normal" for a woman to get stared at like a piece of meat when she's wearing a short skirt or okay for man to speak with a woman and look at her boobs all the time instead of her eyes (this really happened to me by the way and it really felt disgusting). This drama addresses such issues and that's why I enjoyed it. It's not exaggerating such situations but show them how they really are. That also includes sexual harassment against man, which is why I recommend to watch this no matter what your gender is.

To sum it up: It's a heartwarming, comforting and healing drama with funny scenes but also a lot that make you think.
For me the core message of this drama is to be considerate of each other and that's something entirely unrelated to gender.