So this a drama full of romance and clichés, however the characters are really nice and they are well developed throughout the story, and that makes the drama interesting.

In the beginning you kind of dislike the FL, I mean she is clueless, but you gotta understand that this is a necessary trope so that the plot can move forward.
She is way too forgiving and you might consider that a flaw, but when the plot starts to develop, you begin to appreciate her casual approach to life and to certain situations. She only "fights" for the things that really matters to her, so the angst comes from her insecurities, not misunderstandings, which is something relatable to anyone in a new relationship (specially if it is an unbalanced relationship).
She also really bold when showing her feelings, and that is so refreshing because you feel she is growing in her shoes and maturing.

The ML is cold as ice, and really "dumb" when it comes to emotions, but when push come to shove he is not shy about his feelings for Yun Shu, or his marriage, and thats is so refreshing! He is really mature so there isn't a single crack in his demeanor (it's so satisfying him shutting down outsiders interfering in their relationship) when possible love interests come around both of them.

After they solidify that their marriage is not just a contract one, they are both committed to it, and they treat each other with respect, love and understanding.

The second couple, Li Nuo and Zhi Yi (Yun Shu friends) was very interesting and they teach us a lesson, "you should always value the person who loves you", and that is so clear in the end! (I found their ending so realistic and on point!)

The messy couple, Lu Yu and Yun Lan, were full of misunderstandings, and you feel like their story is similar to a main lead couple would have, so its kind of funny to see a secondary couple with a main couple plot.

You have it all with this drama, and it's a quick interesting watch, maybe between heavy dramas, or if you like romance dramas!