Yamatai was first settled over 1,000 years ago by ancient interstellar craft from Planet Nepleslia. As civilization developed on the planet, the computers from their starships became increasingly potent and sentient, eventually laying claim to the southern islands and creating AvaNet, a society of artificial beings who became to be revered as gods.
Eventually, as different factions struggled for the planet, total war broke out, resulting in a horrible plague that wiped out most of the animal life on the planet. The Geshrin are recovering, but the majority of Yamatai's population is now made up of Nekovalkyrja.
The flag of the Yamatai Star System is bellflower purple.
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Resources: Vast forests, water, titanium, gold, oxygen