Okay, so I finished reading this manga like 20 mins ago. These may include a few spoilers tho I will try not to put any.

1. The first thing that threw me off was how the story went from a psychological thriller to a typical shonen manga which was all about killing or being killed. Like the way the jailbreak arc caught you by the balls the rest of the story just didn't do. I understand the fact that this was necessary but the removal of thriller just took away my interest.
This also brings me to the point of how the story just fell weak after the jailbreak arc. Like the way it started I expected it to be similar in the way it developed and the way it kept the thrill going.

2.The antagonists. The story didn't have a chill-inducing antagonist except for Isabelle and sister Krone. These two characters carried the entire show on their backs and did an amazing job being who they are. As the story progresses there wasn't a particularly honestly chill-inducing character but there were those monsters who controlled the entire cattle system.

3. I disliked Emma's character as the story progressed. Personally to me she as a character just didn't have any growth. She is that goody two shoe kind of character who is designed to be perfect. By the middle of the manga, she becomes really indecisive and starts making decisions on impulse which she ends her up in situations that are not ideal. Another thing is she starts to empathise with the antagonists and as someone who has been allowed to exist only for the sole reason of being a cattle, I kinda expected her to have some sense of revenge and want to actually destroy their kind which was seen in normal and hence he became the more relatable character out of the trio.

4. The ending of the mang was extremely unsatisfactory and seemed to be there just for the sake of ending the story.

The story as a whole wasn't terrible and there were many things that I liked. One of my favourites being the way politics was portrayed. The demon politics and the way the hierarchy worked in placing control over the lower parts of the demon society was incredible. The way corruption that took place in the demon world due to the Queen's own greed and the Ratri clan was an amazing choice.

Overall my rating would be:
Art: 9/10
Plot: 5/10 (the jailbreak arc was amazing and deserves a 10/10)
Characters: 4/10 (except sister krone and Isabelle they deserve a 10/10)

This is my first review so it isnt as detailed or good but i hope it helps