E.X. Troopers tells of the fight between the snow pirates and the Akrid aliens on E.D.N. III. The game's protagonist is Bren Turner, a young man who's come to the academy (the game has a school theme) from E.D.N. II. There are also characters such as TeeKee, a female snow pirate who has the ability to communicate with the Akrid, and Gingira, a Vital Suit that's loaded with next-generation AI and can communicate with its pilot. Gingira calls Bren "Master."