He was no naive boy oblivious to the ways of the world. He had long since learned about the customs and people of this place, unlike when he first arrived with wide-eyed innocence.,He knew that the household registration system of the Great Wei Dynasty had loosened somewhat in recent years due to an increasing number of fugitive households and vagabonds.,The Bian River flows westward to reach Luoyang, the eastern capital; northward it leads to Yanyun and Beiping; southward it connects to Hangzhou via a detour. It can be considered one of the major arteries of political, military, and economic activity in the state of Wei.。