It's useless to watch all episodes to see ending like this. some of the k dramas have habits to not have proper ending. If you are 100 percent sure that you will make 2nd season then it's good otherwise don't give false hope to a fans. We didn't know either that minister got punished or not for his all the crimes. I remember another k drama named ' VAGABOND' that ended middle of the story. I don't know if they were short of money or never think of further story.
Anyway for signal I would like to say this is slow many scenes are repeated all the time. it feels like there is always more screenplay in k dramas for wrongdoing by bad guys and when it comes to their punishment it's difficult to find it.