Science Guardian (サイエンスガーディアン Science Guardian?) or the Anti-Academy City Science Guardian (反学園都市サイエンスガーディアン Han Gakuen Toshi Saiensu Gādian ?) is an organization that was formed after the November 10th invasion of Hawaii by Trident from the 27 Cooperative Institutions of Academy City, due to the intervention of several Academy City personnel (Kamijou Faction) during the invasion. Their goal was to at the time of the tournament was to break the unipolar centralized system of Academy City, the foremost scientific authority of supernatural phenomenon.