The manga series 'Black Lagoon' by Rei Hiroe was first published in the manga magazine 'Monthly Sunday Gene-X'.
The anime adaptation of 'Black Lagoon' premiered in Japan, bringing the manga's story to television audiences.
The second season of the 'Black Lagoon' anime, titled 'The Second Barrage', aired in Japan continuing the story from the first season.
The OVA series 'Black Lagoon: Roberta's Blood Trail' was released, expanding the story with new episodes after the initial anime seasons.
Dutch, Revy, and Benny form the Lagoon Company, a mercenary group operating in Southeast Asia.
Japanese salaryman Rokuro Okajima (later known as Rock) is kidnapped by Lagoon Company during a business trip to Roanapur.
After initial resistance, Rock joins the Lagoon Company as their negotiator and strategist.
Lagoon Company gets involved in conflicts against the Colombian Cartel operating in Roanapur.
Introduction of Balalaika, leader of Hotel Moscow, a powerful Russian mafia group in Roanapur.
Roberta, a former FARC guerrilla and maid of the Lovelace family, seeks vengeance, leading to violent confrontations in Roanapur.
Rock contemplates moral questions and his past, reflecting on the tragedies of war and loyalty.
Eda, an undercover agent with ties to the Church of Violence, interacts with Lagoon Company, revealing Roanapur’s darker powers.
Multiple factions including Lagoon Company, Hotel Moscow, and local gangs clash leading to major battles.