 If you liked
Levius
|
 ...then you might like
Abyss Rage
|
Both manga have incredible art styles that are super cool.
Immensely angst main characters with edgy, sad backstories.
Lots of people beating the hell out of each other; in Levius it's boxing, while in Abyss Rage it's martial arts.
All in all, both of these series are so freaking cool.