Although the square Dragon lock city was just a name, it was actually made up of four city chains. The four main cities were the main cities, and between the main cities, there were countless small cities connected. The entire square Dragon lock City area had a total of 136 cities, big and small. They formed a huge square-shaped defensive chain, locking the area in the middle.
The names of the four main cities of the square Dragon lock city were very common. The city in the East was called East City, the city in the West was called West City, the city in the South was called South City, and the city in the North was naturally called North City. The other small cities were all called guard cities.
