Kurumata Rango is drawn to a single invitation and plunged into "Wonderland." A kingdom of twilight ruled by a dark and white queen, it's a bloody ball about to take place, a game in which only one survivor will be left standing. A man calling himself a Hatter appears before the bewildered Rango and tells him: Scattered throughout Wonderland are cards that bestow miraculous abilities upon their owners. They fight to the death, scrambling to steal, but whoever finally obtains all the cards will have any wish granted. Rango takes up a single sword and enters the battle. His wish is for his only friend, Iris - to slash through the wonders of this land.