Perhaps because they had already eradicated most of the Old Faction members in Southern Stick, the area essentially fell under the iron hoof of Basin Chicken, achieving the territorial expansion their ancestors had never accomplished.
As a result, many Old Faction members of Basin Chicken became arrogant, gradually starting to look down on the New Faction members of Southern Stick who had helped them, and, having confiscated a lot of weapons from the Old Faction of Southern Stick, they began to disregard their own New Faction members as well.
The New Faction members of Basin Chicken's family, who had been immersed in the "second dimension" prior to the disaster, were not surprised by the behavior of their Old Faction members. In fact, they had already prepared a plan to deal with it.
As the invasion progressed, they not only brought the Old Faction members into the antagonistic roles of the "second dimension" but also played the roles of antagonists themselves.