The city of Hole is a desolate town where magic users go to test their powers, leaving the citizens with the marks of their "practice". After being cursed by a sorceror, Kaiman was left with the body of a man and the head of a lizard. Determined to break the spell over him, Kaiman works with his companion, Nikaido, to search for the one who made him this way. Unfortunately, with no memory as to his assailant’s identity there’s only one way for him to locate them: he must bite the head of any magic user he meets so that the man hidden inside him can determine if they are the culprit. As he bites, slashes and kills his way through the cruel magic users, will Kaiman be able to find out who the man in his mouth is, where the one he hunts is hiding and return to normal; but will his resistance to magic be enough to help him achieve his goal and keep the magic users out for revenge at bay?
Dorohedoro has a similar world to the one found in Blood Lad, except it is much more twisted, violent and grotesque. In other words Dorohedoro is disturbing, but if you liked the world shown in Blood Lad and you think you can handle extreme level of oddity, then you probably could give Dorohedoro a try.
Kaibutsu Oujo and Blood Lad have very different style, but very similar themes. In both a human being gets mixed up with monsters and dies. But things dont' stop there for that person. From now on he\she has to continue living(?) with the denizens of the monster world. Not to mention that vast majority of characters in both manga are monsters themselves. So, if you liked one of those two, you should give the other one a try too.
In a bizarre fantasy world, students known as meisters are trained at the illustrious Shinigami Weapon Meister University; but the tools they wield are no ordinary weapons! Each meister is paired with a human-like being who can transform into a weapon at will; and after defeating a pre-kishin - a human whose soul has darkened - the weapon eats the soul within it. A meister's ultimate goal is to collect ninety-nine pre-kishin souls and one of a witch so that his or her partner will become an all-powerful Death Scythe. Maka and her partner Soul Eater; Assassin Black Star and his partner Demon Blade Tsubaki; and Shinigami's son Death the Kid and his partners the Demon Twin Pistol Thompson Sisters each vie for their ultimate goal, but plenty of challenges and adventures lie in their way!
Soul Eater and Blood Lad differ in many aspects, but there are two things they have in common. The first thing is the art style, the second are the monsters\monster world. I know I'm being a little vague here, but it isn't really easy to explain. Anyway, if you liked one of those two, you'll find the other one interesting too.