We know, that Japanese and Chinese ethnic groups in the Strangereal exist. But where is their countries? Okay, Japan may be subjugated into Osea, but, in Aces At war: A History we see sailors with asian hats, and at least Huxian exist. Also several aces in games also had asian names. So it's probably about several Usean countries? At south at least. Or it's Verusa, and these sailors near Elevator a descendants from colonists?
It was pretty interesting know about it. For example, this asians may have lot of conflicts with Erusea