The current underworld was no longer the same as it had been in the past. Every day, underworld collected an astronomical amount of resources. Moreover, these resources were all used to nurture new players. Under such circumstances, underworld's strength was changing every day, becoming stronger and stronger.
In addition, Zhao Hai's management of underworld had been semi-militarized, especially the Army. They were extremely strict with their military management. It could be said that underworld's strength was no longer inferior to any large world. The large world referred to a large world like Ling Feng's group, which ruled over at least a dozen worlds.