You know, I really wish that for all the works made by Naoki Urasawa that are reviewed, they would simply say: "Made by Naoki Urasawa. Stop reading this and go read/watch -manga/anime being reviewed-". But alas, sometimes one thinks they need more of a reason than the series being completely awesome or the creator being as equally awesome. Then again, it wouldn't fill the reader's noggin with praise for said works. And then again, they shouldn't need to be told that he's awesome. They should know it.
Oh well, lets begin. To start off, it uses an arc that appears in Astroboy and makes it it's own, with plenty of the characters seen there appearing here. This includes the title character Astroboy, Dr. Ochanomizu, Dr. Tenma (No relation to the surgeon) and a few others. It doesn't just slap the characters in for the heck of it, it brings them into the story and makes it feel like they belong there; that they aren't simply there to appeal to the Astroboy fans.
Since there's no synopsis at the time of the review, I suppose I have to give out a bit of the story, as spoiler free as possible. And don't worry, it's all in the first volume. It's essentially a murder mystery, as it starts off with Montblanc, one of the seven most advanced robots (Out of all of them) in the world, found dead, torn to pieces. Detective Gesicht, another one of the seven, is tasked to find the murderer of Montblanc, but it goes far beyond destroying a world-renowned robot, as a human who worked for the Robot Law Protection Society is found dead as well. Both are connected with two large horn shaped... objects (Varies) found near their head. And to be fair, that's all in the first chapter. It gets worse, as the body count rises and pieces of the puzzle come into play, it's a race against time to find out who is commiting the murders of both robots and humans alike. That last part sounds a bit cheesy, but the story is far from. It's not as slow-paced as Monster but it nearly tells a great of a tale with it's own twists and turns and surprises throughout.
The artwork is Urasawa's usual style, which means that it looks good, suits the manga perfectly and is serious. But a few characters do look like others that appeared in his other works, most notably Epsilon, in relation to that certain devilish mastermind Johan. Nevertheless, it gets the job done and it does it well. I can't really say much else apart from mentioning again that it works in bringing it together.
Characters are the same in other manga of his in terms of how amazing they are. Robots that can act like humans, that can appear to feel emotions and at times can make the reader forget they're robots. That right there is what makes the characters here shine (The robots at least). To make robots that look, feel, act and overall overpower what they originally are. But that's not to say that the humans fail in comparison to them, as even some characters that are only in a small handful of chapters are fleshed out, which is a pleasant surprise, and that they play a decent role in the plot makes it all the more amazing. Almost like Monster in a sense, where nearly every minor character has a role to play that relates to the plot or further enhances certain themes. Pretty much all of the seven (Most advanced robots) have some backstory to them, or at least a bit about them. Some might not have much (Montblanc for one), but others are quite nicely fleshed out (Even Astroboy, which is a great touch). Overall, some characters aren't as fleshed out as others but that's made up for the main characters and the ones brought over from the source material, and those which I must say again, aren't wasted and fit the story like a glove.
This series needs to be read more, by far. Not simply because it's based off a universe by the godfather of manga or created by a legend, but because it by itself is a true work of art. It's an amazing tale of mystery with great characters and an even better story. If this were an anime it would probably be pretty long and be obscenely faithful to the manga, but with a manga this good, that would be the biggest compliment it could get. If you gotten this far, start reading it immediately.