*Disclaimer*
Just personal scratch.
Advised, possible spoilers.
Opinion & Informal

Art: 6/10
The presentation of the art was a bit rough but I was fine with it because it's something different. The details and character art weren't anything to praise but at least the anatomy and proportions checked out. There were some really nice impact shots that are worth praising; the funny ones that went along the lines of, "I just got a whole load of my man juice all over it." and " Literally, buckets of..." There weren't any panoramics or environmental shots. I didn't see any showcases of artistic skill either. The art was fine and did it's job in the places that mattered.

Panel Progression: 7/10
The panel progression had quite a nice variety to it. There were a lot of uses of panel cutting and attention to layout to keep the pages interesting. The pacing of the panels was about right and the whole story flowed clearly. The clarity of the panels and layout were also something to note. The information wasn't confusing and things were able to be conveyed appropriately.

Characters: 9/10
The characters felt so alive. Their feelings of satisfaction, escape, jealousy, resent...everything was there. While the character designs were a bit above average, what really shined were the character's personalities. This manga did a splendid job in giving the characters life. While I don't particularly think that supporting cast is a part of that statement, the MC and the squirrel girl were really well done.

Plot: 8/10
A standard coming of age story with a bizarre twist to keep the plot fresh and unique. I'm glad that this manga decided to stay true to it's roots and that it didn't drop the hook after a few chapters. What I tend to see in "interesting synopsis" anime/manga are that they will present some crazy and interesting plot point at the very beginning only to drop it for a standard and conventional setup and development. This manga didn't do that. While it's an adaptation of a web-comic, it was able to stay true to it's initial plot point and even went on to develop the rest of the story around in including the MC's own personal growth. The fact that the the main plot point wasn't dropped and that it was used as the foundation for the MC's fall, realization, and metamorphosis is something that a lot of stories fail to do.

Development: 10/10
This is the highlight of the manga. This is a coming of age story that will be one of the first things I think of when the phrase is brought up. The characters were so well written in my opinion. I loved how the MC was the type to just go along with the flow. His condescending attitude to everything around him was able to give an idea of what he thought of the world. I don't think the he felt himself superior, I just think that it drew from an dissatisfaction with himself. His daily "ritual" I felt were a way for him to escape himself as I think he was aware of his brooding nature. I think that the MC was aware of how low he was and how much he was dissatisfied with his life and current self; I feel that he was aware of it to a degree but was either running away from it or refusing to think about or confront it. His rituals to me were not only an escape but a way for him to accept his terribleness and rotten personality. I think that he engaged in his ritual as a way to confirm that he was rotten...an activity fitting of someone like him. The high and climax that he felt during his rituals were there to keep him coming back to that state of low. I think that the pleasure was "something" good about being so low. The way he mentions that emptiness he feels after each ritual lead me to believe that he realizes those points after every ritual. He isn't strong enough to think about changing and is too afraid to even take one step towards it. The squirrel girl served as such an amazing foil to him and was what lead him towards change. He needed something to shine a light on him, something to illuminate that path and make him realize his own worthlessness. What better than someone just as dark and twisted as he. He didn't need some angel to save him. The MC needed someone just like him, someone as low as him to make him realize how terrible and sad he really felt about himself and how he viewed the world around him. I think what I said is exemplified with how the manga used his first love. What I mean is that in order to realize, he needed squirrel girl to push him over the edge. Without the squirrel girl he would never have fallen in love, crushed that love, and spiral downwards. I think that his spiral to the bottom...when he was at the lowest possible point...all he could do is look up. These reviews are really informal and I honestly just jot down whatever comes to mind so I apologize for the informality in the flow. Mmm...basically, the MC and squirrel girl while very similar acted as great foils to each other. The squirrel girl was what the MC needed to see. He needed to realize that she and he were the same, that if he continued to go down the squirrel girl's path nothing good would come of it. The MC needed the squirrel girl as an example of himself. She was the literal representation of his hate towards his first love...the squirrel girl resented anyone for the smallest reasons, he realized that he was no different for when he crushed his first love. Overall, what I want to say is that the development from start to finish was done masterfully. The stagnate existence, the rise from a first love, the spiraling fall from jealousy and resentment, the realization, the redemption, and the struggle...all of that lead to the culmination of change. When I think of a coming of age story I think of change. This manga was able to show me change at all the right levels in all the right ways; that is why I gave this area a 10/10.

Conclusion: 9/10
Going to just point to the development section for what I want to convey mostly and to keep things short since I ranted quite a bit thus far, but I thought the conclusion, while a bit abrupt and out of nowhere, did a swell job in the lead ups. The big questions were answered and the story was opened up towards a meaningful future that we would not ever see. The conclusion made it feel like their lives would continue outside of the pages which is what I really like to see in conclusions. The open-ended, odd, and a bit abrupt nature of this manga's conclusion felt appropriate to me. The culmination of everything just added to the overall atmosphere this manga was able to leave in its conclusion.

Overall: 9/10
One of the best coming of age stories I've ever read. I genuinely felt like I could connect with the feelings of the characters of this story. Thus, their feelings felt real and they themselves felt alive. This is definitely worth reading for its interesting plot, the well written (main) characters, and the masterfully done start-to-finish development.