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Secret organization created by the Japanese government to combat alien threats following the incident involving EI-01 in 2003. Formed from the best specialists and brightest minds in Japan, using technology discovered in Galeon's databanks (and Professor Leo Shishioh's own designs based on same) as its foundation.

The late Japanese intelligence agent Kirio Inugami was said to have played a major role in its founding.

They have ongoing cooperation with the NASA in the United States, where Leo Shishioh's brother Liger and Swan White's brother Stallion are stationed.

Article 5, Section 120 of the GGG Charter states: "Under no circumstances must a GGG member ever give up."