Marine Institution

The Marine Institution are the Main Antagonist Of Kamen Rider Ocean The Movie:Ocean in Atlantis! The Fight For Freedom. They are evil terrorist that corrupts anyone they want.

Members
Con Nakama(Leader/Kamen Rider Marine).

Lia Akumo(Mermaid Ocian).

Kumo Kage(Spider Crab Ocian).

Taichi Owari(Sea Lion Ocian).

Tora Shinjiru(Tiger Fish Ocian).

Denton Taka(Arowana Ocian).

Corrupted Soldiers
Atlantis Soldiers.

Ocians.

Kivan Armada.