Unnecessary screen time for the villain at the end. There is no need for him to run over ML with his car, there is no need for him to kidnapped the FL and there is absolutely no need for him to shoot anyone.

Instead of having those scene, they should have resolve these storyline/plot:
1. How did main lead become so cold to each other? Their baby? How?
2. ML and FL found out that ML save FL when they were kids
3. Queen Family found out that villain killed FL brother -> FL didn't caused her brother's death
4. Why the villain's mother hate Queen family?

As much as the villain actor portrait his character very well. It is a drama that better without a very strong present villain.

The main lead is the reason why I'm still watching this. KJW and KSH have great visual and acting. They also look great together. I am sad that we don't get more FL and ML moments in the final because I definitely wanted to see more.