Rokkenjima is a nation located on Planet Bob headquartered in Japan. Most known by the public for the Rokkenjima Mass Murder Incident of 1986, it once held the legendary battle between Beatrice, Battler, Ange, and Lambdadelta vs. the forces of Featherine Augustus Aurora, Bernkastel, and Furudo Erika. This battle would soon go on to be known as the Battle of the Golden Land. Soon after the battle's conclusion ending with the death of Battler, Ange, Beatrice, and Lambdadelta; the Witch of Miracles, Bernkastel granted her piece, Erika with the title of Territory Lord. Following her victory, Erika revived those lost in the Battle of the Golden Land and became the next master of Rokkenjima.