This manga is peak 2000's. From the edginess and action packed scenes, to the gritty artstyles, it's definitely something any middle schooler would go insane over. The actual story is more style over substance, although with an aesthetic this good, who cares? I think one of the interviews the author gave stated that the manga was based off a videogame and that's pretty obvious when you read it. Not a necessary read if you're into manga with more psychological scenes, but if you're into action then this will be the greatest comic you'll read for a while.
Author better finish this before he dies. That's not happening anytime soon though.
Priest