Beware that there are some minor spoilers for the first chapter.

Majin Tantei Nougami Neuro:

The introduction of this story is pretty simple. Highschool girl's Yako's father is murdered and while she is mourning her dead father, suddenly a grotesque looking demon from hell/demon world appears out of nowhere. The demon calls himself Neuro, he eats mysteries or in other words murder mysteries and the evil emotions that drives people to murder, commit crimes. Surely, Neuro has bioshounen human form to infiltrate the human world and prevent other people for finding out his identity. Soon the reader learns that what drove Neuro towards Yako's home was the scent of the mysterious, unnatural death of her father and from this point the story is all about Neuro solving murder cases with his supernatural powers, superior intellect while Yako acts as a fake investigator to deceive the public. By the way, the poor girl also becomes the slave of this demon.

Art 7/10
I actually put this on-hold after reading 20 chapters, the art in the beginning is really, really rough on the eyes. Later on the mangaka improves his skill, however there's still a lot of disappointment. The facial expressions of the characters sometimes look copy-pasted and there are plenty of instances in this manga where I see the same face used many times. Another problem with the art is human figures, yes they look very weird especially in the first chapter, but later it improves as I said or I just got used to it. The big problem is with the backgrounds and action scenes. Sure they are drawn fine, but they aren't clear. There were many cases where I look at the image and I have to analyse it for more than 5 seconds to comprehend what is in the background. Same with the action scenes, especially during the final arc. The final arc is the point where the story turns into edgy Bleach clone, but it's not like that itself is a bad thing. So yeah, my main issue with the art is that it is sometimes hard to comprehend the image since there's overload of things, details to be aware of. And there's that trick with faceless crowds, it's annoying, but hey it's a stylistic choice. Character designs outside the main pair are simplistic, but they work out just fine. There are also plently of surreal images in chapters, mostly dealing with Neuro's powers. That's all I have to say about the art.

Characters 10/10
I really enjoyed the main pair. Neuro is an intelligent, powerful demon who is both sadistic and childish. What can I say? His badass moments surely make him shine. Everytime a crimal is revealed, Neuro being a sadist that he is, surely messes criminals up. There are many more things about him, but his most important comedic trait is that he's into BSDM. Yeah, the demon tortures, treats and beats the poor girl in all sorts of comedic ways. Not funny? Well read it since the mangaka has talent to make people laugh at totally unfunny things. Although, by the end of the manga the joke gets too redundant. There's another layer to Nuero, but you'll only get that when you read until the very end.

Another major character is Yako herself. She has enormous apetite, but doesn't get fat. Well, only on one ocassion. But that comedic trait is not all there is to her. Despite being the domon's slave both as a detective and an object of his sadistic fetishes she gets the most development in the story. In fact, this is her story and her viewpoint turns this pseudo-mystery genre story into a psychological one.

Then, there are other character's. The main villain of the first half who is creepy, yet somewhat silly and charismatic. He's great. The police and the detective who could be considered the tritagonist of the story. He's a great badass. A couple of well-written characters from major arcs and then there are people from smaller arcs, some of them are important, well-developed while the others are meh and not that believable. Beware that the final arc presents something like Hueco Mundo arc from Bleach. Yes, I'm serious, but it's not in a fantasy world. The readers may feel betrayed, but I guess that was the choice of the editors since this wasn't shounen enough. In the end I liked it.

Story 9/10
Okay, the first half is basically lots and lots of minor arcs dealing with murder mysteries. Then we have one major arc with a major villain that was kinda foreshadowed, then we kinda slow down and the main story starts to develop until the climax. The mangaka wraps this up pretty nicely, but somewhat it feels that the manga was axed in the last 10 chapters.

The stories themselves are nice and what matters the most is not whodunit, but what were the motives of the person who did it. In other words, the inner state of the murderer. Don't expect this to be a story were you can solve the mystery as you read along. Yes, some of the things you could solve, some you could foreshadow, but the majority of them are shoved right into your face. There are many things that I have issues with concerning the story. One of them was that some of the murderers were very unbelievable as well as their murders. At one point after the first major arc it felt like the author ran out of ideas. And the sudden switch to something like a fighting manga wasn't expected. The final villain was the edgiest I've ever seen and this is a Shounen Jump manga, lol. I found his motivations hard to believe, but well I guess it works.

Enjoyment/Overall 10/10
While Majin Tantei Nougami Neuro is not the best manga out there and it's comedy is sure weird as hell, but then it's not as cringy as hell. It is surely an entertaining ride. One of the best I have to say. When you get to know the characters, their motivations and colourful personalities you find this hard to put down. It's better if you read the first half in short breaks since it may fry your neurons. Did I mention that there is a lot of dialogue, so you better be prepared at least until the final arc. It surely took me a long time to read, a very long time, but I didn't regret it even if I have to write my damn BA thesis right now.