Golgo 13: The Professional

After assassinating the son of business tycoon Leonard Dawson, Golgo 13 finds himself prey to the CIA and the U.S. Army, whom Dawson has personally hired to kill the assassin. As days pass by, Dawson slowly loses his sanity as he continues to plot every attempt to kill Golgo 13 even without caring about who hired the assassin to kill his son. (Source: Anime News Network)

Ray

If you have enough money, you can buy anything. So why wait for an organ you need to become available? Raised to be harvested for parts, Ray had already lost her eyes when renegade surgeon Black Jack rescued her. Now, ten years later, she has grown up to be a surgeon herself. And thanks to the unique artificial eyes she received as replacements, she has a reputation for performing incredible medical operations that no one else could even attempt. But unknown to any but a select few, her surgical endeavors are only part of a greater mission: to discover what happened to the other children she was raised with, and to find the men who stole the eyes she was born with and to bring them to justice. (Source: The Anime Network)

Black Lagoon

Okajima Rokuro is a Japanese businessman in a town full of Japanese businessmen. His normal day consists of social drinking with clients and being kicked around by his bosses. He finally gets a break though, as he's sent by his company to the tropical seas of Eastern China to deliver a disc. But his boat gets hijacked by a band of mercenaries hired to retrieve the disc. Rock (as he is newly dubbed by his captors) catches the interest of the only female merc Revy as she thinks he's worth a ransom, taking him hostage. However, the disc that was stolen has a terrible secret that's unknown to Rock, which causes massive confusion and chaos for both him and his kidnappers.

Jormungand

A ruthless arms dealer on a quixotic quest for world peace. A child soldier born into chaotic conflict. Their lives will intertwine as they journey together through the seedy underbelly of the world's arms market. (Source: FUNimation)