Karito Tate is a bodyguard who takes on various jobs to protect VIPs using martial arts, various firearms, or high-tech gadgets.

The world has become a desolate, lawless land where bandits roam free, innocent people suffer and demons lurk around every corner. Sona Yuki is traveling with his family when they are attacked by bandits and his entire family is murdered and he is left with a snake mark on his hand. As he is about to die, a women comes up to him and gives him an option: continue to live in this harsh environment or die peacefully now. Yuki chooses life and Garami, the woman, gives him a second chance at life in exchange for his servitude. Garami is a weapons merchant and a gun for hire that travels from town to town for clients. Yuki sees how brutal and unforgiving this world can truly be.

(Source: MangaHelpers)

From Ryoji Minagawa and Kyoichi Nanatsuki comes a world of nano-machines, cybernetic assassins, powerful telekinetic opponents, and secret organization dedicated to bringing forth the next evolution of humankind. Containing all the best elements of sci-fi, spy fiction, and conspiracy theory stories, Project Arms is about kids whose arms transform into grotesquely deformed superweapons.

Humans with strange new powers have begun to appear. They are called Knockers. The Knockers are not without rival, they are being hunted by the mysterious being named Void! Not adhering to any notions of good or evil, Void pursues the Knockers while being himself in the cross-hairs of government agencies BOOTS and the Public Safety Commission Section 5, along with mysterious pursuers like Shamonji the beautiful swordsman and the undead soldier Pale Horse, who arisen from the dead. Just what is Void's goal, and for what purpose does he stretch his raven wings?
(Source: OMFGG)