Black Lagoon
In short
Black Lagoon is a Japanese manga series written and illustrated by Rei Hiroe. It has been published in Monthly Sunday Gene-X since April 2002.
In plain words
It is a comic book series about mercenaries and criminals in a lawless city. The story follows a group of people working for a transport company in Southeast Asia.
A simple example
A reader might buy the collected volumes published by Viz Media to read the entire story in English.
Why it matters
The series is a well-known example of the seinen genre, focusing on gritty action and crime. It has also been adapted into a popular anime series.
Easy to mix up
Do not confuse this manga with the lagoon itself or other crime dramas with similar names.