The Luman Kingdom wasn't large; in terms of size, it was about as big as a province under the control of the Rage Owl Star Alliance.
However, this place, though backward and poor, was much better off than the initial state of Wasteland World under Rage Owl Star. The relatively fertile land supported a population of forty million—already matching the entire population of Rage Owl Star.
Gu Hang planned to continuously extract population from the Luman Kingdom as part of an immigration policy to populate Rage Owl Star.
Rage Owl Star was his main base; building it up was the foundation of everything.
The mining areas in the Eastern Provinces needed manpower; the Weixing City industrial district he had built himself had an almost insatiable demand for people; thousands of kilometers of arable land in the Green Valley Region, across two provinces, was just waiting for people to develop it...
People and finances were both areas where Gu Hang could continue to bleed Heijian Star.