The Shuffle Alliance is a public team that watches humanity from the shadows and intervenes to prevent conflicts from escalating.
It consists of five members: Domon Kasshu, Chibodee Crocket, Georges de Sand, Tsai T'zu Hsi, and Argo Gursky, who are the strongest fighters of their generation.
Its name is derived from the fact that each member bears the crest of a playing card: King of Hearts, Queen of Spades, Jack of Diamonds, Ace of Clubs, and Black Joker.
The original Shuffle Alliance consisted of Master Asia, Tris Surgeyrev (Black Joker), Nassius Kircher (Jack of Diamonds), Max Burns (Queen of Spades), and Alan Lee (Ace of Clubs) until Master Asia, who grew disillusioned following his victory in the 12th Gundam Fight, left after bestowing his title to Domon Kasshu.
During the 13th Gundam Fight, the remaining members face Master Asia and Domon's friends Chibodee Crocket, Georges de Sand, Tsai T'zu Hsi, and Argo Gursky, who had been infected with the DG Cells, at Shinjuku.