If you're looking for a funny lighthearted adventure story this isn't it. This is a political drama that pretends to be a fun adventurous shounen to suck you in and then spits in your face by taking all the good things away and forcing you to keep reading because the author can't decide when to finish her morality rants and dumb plot twists while you're trying to enjoy yourself.
It started good, then around chapter 200 it all falls apart completely. The anime is better, don't waste your time.
The Devil's Boy