From the diligent employee Rokuro to the cool adventurer Rock... Nothing could be easier: just let yourself be kidnapped by a modern pirate gang. The condition: the company deems it unnecessary to pay a ransom and simply declares the missing employee dead! So, what choice does Rokuro have but to join the tough Dutch, the trigger-happy Levi, and the tech whiz Benny, who, on behalf of the mysterious Russian Balalaika, are causing chaos in the Asian Sea aboard the decommissioned torpedo boat "Black Lagoon"? The result: Rock experiences outrageous adventures that Rokuro never dared to dream of!.