Ongoing

Black Lagoon - Eda - initial stage

Also known as

BLACK LAGOON　エダ　イニシャルステージ
Black Lagoon: Eda - Initial Stage
Чёрная Лагуна: Эда. Начальный этап

Black Lagoon: Eda - Initial Stage centers on Eda, the original manga's undercover CIA agent based in Roanapur's church, during her early days as a rookie in the CIA. (Source: ANN)