god that's one extreme manga, and it's for adults only, (I think it targets young adults more...)
I think I am really getting old when this kind of manga interests me....
If I have to describe it.... It's Death note with a completely different style, hot blooded shoenen beat them evil up kind of deal. Except in this one, the bad guys are the people who toy with money and law in their hands, not just low life criminals.
Caught up on One piece, read a bit of D.Gray Man, lost interests after a few volume (its too much for high school girls.)