Black Lagoon

Black Lagoon is a Japanese manga series written and illustrated by Rei Hiroe. It follows the story of Rokuro Okajima, a Japanese businessman who is taken hostage by a group of mercenaries operating in the seas of Southeast Asia. The series is known for its dark and gritty themes, as well as its blend of action, drama, and crime elements. The series has been adapted into an anime television series, and has gained a significant following worldwide for its unique storytelling and complex characters.