The 'the black lagoon story' likely involves some kind of adventure in a lagoon. Maybe it's about exploring the secrets hidden in the black lagoon, such as strange creatures or lost treasures.
Well, the Black Lagoon story is set in a seedy and lawless port city. It tells the story of the Lagoon Company, which consists of some tough characters. They deal with pirates, drug lords, and other unsavory types. Rock's journey is interesting as he has to navigate this world of violence and amorality. There are also other characters like Revy, a trigger - happy gunwoman, and Dutch, the leader of the Lagoon Company. Their interactions and the various missions they undertake make up the complex and exciting plot of Black Lagoon.
The Black Lagoon manga is not ongoing anymore. It wrapped up some time ago, but it left a lasting impression on fans with its exciting storyline and memorable characters.
It was likely born or evolved there. Since it's a prehistoric - like creature, it has been in the Black Lagoon for a very long time, long before humans came around.