This review I am obligated to write one after reading 64 chapters. You see this manga depicts the harsh reality of our world, that is child trafficking, child soldiers and other brutal circumstances that we only hear in news. however there is on caveat to this manga, this manga shows hope for the children, while in real world its just not the option available.
Story is pretty good, it not very impactfull but it is good nonethless. it is filled with optimism. even though there are bits where it gets uncomfortable to read and go through without getting disgusted. but thats the point to make you realise that world is not as comfortable as it seems and it succesfully delivers on it.
Art is pretty awesome, no complains there. The details are pretty visible specifically the facial expression and you come to notice the diverse array of charcters who are noticable, memorable and most important of all distinguisabe.
Characters have distinct personality and the protagonist is not some saint with morals higher than Buddha. He knows the circustances and acts accordingly, no matter how morally ambigious it seems. however he does have certain principals which are constant. overall, he seems like human not some high all mighty. Children act like children and but most of the time like grownups and knowing the story, it makes sense. Overall characters the world seems alive and real due to the characters and there is no synthetic feeling.
however on thing unsetlling was revenge arc that seem too far fetched. they could have stopped at certain point but they kept pushing it and i can unerstand why they had too. in my understanding it was to demostrate that people in that line of work often turn out to be monsters or they lose sanity. they coud have handeled these situations a bit better though. Thats my only complain.
One thing for sure is most are not going to like due to the reality it sets up to experience and knowing they are actually real makes it a bit more distressing.
In the end I would urge you to give it a try and experience it for youself. Reviews can only give you general gist and not the actual feeling. If you find yourself not liking it, its cool, just drop it then.
P.S. There are some nudity too obiviously.