At times, this is the typical contract relationship plot of the warm woman/cold/man variety, but it subverts expectations every episode. I've seen dramas like this and was pleasantly surprised by the screenwriters' choices, especially concerning the FL. Yes, she can be a little naive (especially when it comes to trusting people, wow), but she learns pretty quickly. The ML is also a little naive when it comes to romance, but the leads grow together in this aspect. They also have a natural chemistry and great communication. Whenever there's a misunderstanding, usually everything is resolved in an episode. The romance follows a realistic flow, and the plot isn't too forced.

That being said, I hated the FL's friends' plot which is why the story isn't a 10. They both jumped to conclusions left and right and I couldn't understand why they were together at the end. A breakup should have been their happy ending. I will definitely rewatch this, but I will completely skip any of their scenes because it's so frustrating.