Akira Inugami is a teenager with a secret: while his slender build makes him appear weak, he is in fact a werewolf with incredible senses, an inate fighting ability, lightning-fast reflexes, and an inability to sustain damage. After a series of dangerous incidents leads to him being expelled from previous schools, Akira transfers to Hakutoku Academy with a desire to be left alone. However, on his first day he instantly becomes the target of the school's most infamous delinquent gang, led by the fearsome Haguro. On top of that, his homeroom teacher, Aoshika, has taken a keen interest in the mysterious teen and refuses to leave him in peace. Now with enemies to fight at every turn and Akira finding himself unable to let the beautiful Aoshika suffer on his behalf, this lone wolf's hopes of a quiet, solitary life seem like little more than a pipe dream.
Both mangas are drawn by the same author, and portray a dark, lone-type hero, who seems to be immortal. That main character is acting according to his own code of rules, that often doesn't neccessarily fits with the normal laws of human society.
Both stories are dark and filled with explicit content - mainly gore.
If you liked the story and the art in wolf guy- ookami no monshou you probably also will like it in Akumetsu since they share the same writer and artist. Also the action, gore and violence are pretty much the same.
Bit more deeper thoughts and conversations a lot less smut and adult content.
Yuiko loves animals, but given the overly-aggressive way she tries to show her love for them, they always run away. One day Yuiko meets a strange boy named Leo who seems to be more beast than human; his fierce eyes frighten everyone away, and he harbors a dark secret: when he's threatened or sees blood, Leo loses control and behaves like a wild animal. Can Yuiko tame this wild beast, or will he run just like all the other animals she loves?
Both Wolf Guy and Beast Master offer male leads with beast like traits. While BM is much more light hearted than WG, both offer a bit of romance. If you like one, you should give the other a try.
Jin is an energetic young boy living in a shanty town and making ends meet by performing good deeds for money. However, when his mentor dies during a fight with a strange monster he finally learns the meaning of death. Having been taken in by a stripper named Akemi whom he once saved, Jin begins to live a quiet and normal life - though in reality he is anything but ordinary. With superhuman abilities and a group of mysterious men searching for him under the name of Zet, over the years Jin finds himself drawn into a world of creatures with dangerous powers called "Players". But what is Jin really, and with his vicious methods of defeating these threats, is he really a hero for justice or simply another dangerous monster?
If you like either Zetman or Wolf Guy, give the other one a try. Both revolve around an invincible male protagonist that virtually cannot die. Both mangas offer realistic themes and are very explicit in blood, gore, and in the case of Wolf Guy, nudity and sexual references. Both mangas deal with some relationship aspects of the male lead.
Try them out, you won't be disappointed.