I am no expert reviewer, and generally I am very generous in my reviews. I am also relatively inexperienced with manga, so who knows how many great things I have yet to read to overshadow this particular work? But for now, and from my personal opinion, this is a brilliant manga that I hope to remember for years to come. Because I feel it deserves this, I will give an in-depth review of each section that I have scored to the best of my ability. I will try my best not to spoil anything, but I make no guarantees.

Story: No words I have could do it justice. It started off very odd, something I thought I would just read for the sake of reading something weird. When I saw how many chapters the story contained, I doubted I'd ever finish it. Instead, I was drawn in to what became an amazing emotional rollercoaster, an educational experience, and a brand new outlook on the world. There are statements made in the very beginning of the story that you may or may not think you understand, may or may not agree with, but it won't be until the very end that you truly hear the message of this story. It was very gripping, and I can recall at least 3 times that I was very nearly brought to tears. Any problems I had with the story stem only from a few shaky translations here and there, making the dialogue hard to follow, but this was very rare. If not for that, if I were allowed a perfect understanding of every panel, I would give the story a 10.

Art: The art is interesting. As I believe another reviewer mentioned, it's not quite the same art as you might expect from a manga. Every artist is unique, of course, but this style certainly stuck out, and it was somehow very fitting for the story. No character is overly beautified, as you'll often see. The characters all appear rather average, which of course adds to the realism. Of course, this also creates a sharp contrast with the titular parasites of the story, which are certainly some of the most abnormal things you will ever see drawn. No matter what, everything is very nicely detailed and anything involving the parasites is satisfyingly surreal. If the artist wants you to see the inside of a body, then you will be seeing the inside of a body. If you should be seeing an amorphous parasite, then you can trust that the art will clearly show you an amorphous parasite. As for the negatives, some minor qualms with the art include some strange facial expressions, particularly any view of an open mouth from the side, and the fact that certain characters, mostly females, looked almost inconveniently similar. While I approve of the characters having an average appearance, a little more effort to differentiate between them would have been nice.

Character: I have no doubts in my mind that these characters are a perfect 10. When the character's faced a struggle, I faced it with them. When they lost something precious, I felt their loss. When they attacked in blind rage, I felt their rage. These characters are very real, even in the most surreal moments of the plot, and I refuse to believe anyone could read through this manga without connecting to them. The human characters, even the minor ones, experience various flavors of pain, and just like real people you can sympathize with even the most subtle hints of emotional distress from these characters. Even the cold, emotionless parasites will relate to you in their logic. What they lack in emotion, they make up for with the delivery of a different view on life that you won't soon forget.

Enjoyment: Now, it is in this section that I believe opinions will differ the most. While some will find this work to be brilliant, others could completely, and even understandably, disregard it for what it is at face value. To read a manga about parasites taking over bodies and mutilating humankind will require a certain, possibly acquired, taste, or at least a certain level of tolerance. However, anyone who can enjoy or look past the more disgusting aspects of the story is sure to enjoy every moment of it. As I've stated above, I hadn't expected to have the attention span to bother to complete a story when all I was expecting was a quick fix for that desire for something out of the ordinary, and instead this manga grasped me tightly as I stayed up in the late hours of the night just to blast through another few chapters. I enjoyed every moment of this manga, and I'd like to believe I'm not alone in this.

Overall: In conclusion, this is among the best manga I have ever read. The art gave me very little problems, and I don't regret a single night I gave up sleep just to read this to its conclusion. The plot, the characters, the themes and messages delivered all sliced deep into my heart like only a parasite can. And, similar to certain events of the manga, this parasite has proven itself to be a symbiote, because as it invaded me I only felt myself grow stronger and become a better person for reading it. At least, that's how I feel, and how I hope all other readers will feel once they've allowed themselves to be taken over by Parasyte.