Black Lagoon Vol. 4

Meek businessman Rokuro’s routine business trip to Southeast Asia quickly turns south when the ship he is on is hijacked by a group of mercenaries called the Lagoon Company. After he is taken hostage, he learns that his boss made him an unwitting participant in a smuggling operation and decides to give up his corporate life for a life of crime as the newest member of the modern day pirate crew. Together with a sadistic killer named Revy, a former marine named Dutch, and a college dropout named Benny, Rokuro, now nicknamed Rock, begins a new life in the risky world of gun-running, drug-smuggling, and kidnapping!
Notice: This manga is written in Japanese.