Du You also realized that on the Yalan Continent, the reason why the Shenghai Empire has such difficulty advancing is mainly because it is challenging to get in touch with those tier seven powerhouses. Without contact, progress slows down.
The original powerhouses of this world weren't so scarce; it's just due to certain reasons. As a result, the quantity and quality of these strong individuals fell short of what this world could have achieved, and as one can imagine, territorial progression was also slow.
But like Shaliya thought, after annexing the West, Du You also believed that his territory could advance.
However, what would happen after the advancement, Du You himself did not know. All these required exchanging for knowledge once he returned. Due to the urgency of leaving this time, Du You hadn't had a chance to exchange for these things.