Satori and Koishi's Àozhōu Republic, also known as either Satori's Àozhōu or Koishi's Àozhōu is a nation in Oceania.
Àozhōu was established by Koishi Komeiji in 1929 after the huge immigration of exiled people who fled their homelands to move to Australia. At the same time Koishi had Àozhōu declared independence from the United Kingdom. Satori also put forth an isolationist policy but allowed exiled immigrants who fled their home nation to escape the onslaught of Zhuórè dìyù jī. As Àozhōu was mostly desert, the government tried to find a way to supply more farmlands for growing foods. After Cirno immigrated to Àozhōu in 1939 she used her ice powers and turned Àozhōu into a claimate that can bring yearly rainfall everywhere in Àozhōu and can produce enough food for everyone. In 1950, the population of Àozhōu was at around 80,000,000 thanks to the substantial climate.
In 1956 Zhuórè dìyù jī declared war against Àozhōu, though Utsuho Reiuji, Secretary for Defence of Àozhōu decided to try to fight off the invasion herself. It lasted into a two year war, in which led to a stale-mate, the destruction and death of Utsuho Reiuji, and the survival of Àozhōu.
It is also known that Àozhōu is on the side of Democratic Kaiser Germany.