Wu Cheng is the capital and largest city of Nan Hai Nian. It lies on the side of the Yong Shan mountains, high above the rest of the region. Rice shipments and other tribute are sent here, intended for the yearly return of the Leviathans but sent in such amounts as to keep the nobles happy. The nobles' reciprocal promise of protection keeps the locals sending tribute.
Almost a third of the population of the region lives in Wu Cheng, benefiting from the rich cultural, religious, and economic prosperity of the city and the prestige it grants. Within Nan Hai Nian there are no other settlements to truly compare as cities and the rest of the population lives in the fishing or farming villages throughout the lowland countryside.