The Anti-Zodiarts Union (反ゾディアーツ同盟 Han Zodiātsu Dōmei) is a group that was supposedly founded and led by the enigmatic Tachibana. Knowing that Cosmic Energy would one day be used for evil, Tachibana gave Ryusei Sakuta the equipment to become Kamen Rider Meteor to fight against the Zodiarts. Their headquarters is in the artificial sattellite, the M-Bus, which provides Meteor with his powers. In contrast to the similar Kamen Rider Club, the union is more secretive.