Argo is the selected fighter to fight for Neo Russia, for the 13th Gundam Fight. He's actaully a prisoner since he was a space Pirate. His large bulky body hides a kind and tempered man that just wishes to repent for what he has done. Constantly forced to fight he understands Domon for the fact that Domon must fight for the one he loves. (Argo also pilots the Bolt Gundam a gundam known for its raw defense and amazing power ablity.)
After the Shuffle Alliance was defeated by the Devil (Dark) Gundam, he was bestowed the title Black Joker. Now he joins Domon and helps fight against the Devil (Dark) Gundam.