This is a world where the sky is round and the earth is round. It seems boundless, but it is actually limited. The earth is square. People work the land. Work at sunrise and return at sunset. But there is a mysterious place in this land. It's called the Bronze Gate. This door is huge. Whenever the bronze door is opened, there will be monsters catching people, and those who are targeted will never be able to escape. The bronze door opens every once in a while. 4 S90 is the name of the protagonist, there is no name here. Only numbers. Later, Xiaojiu escaped from the bronze door. Only then did I realize that there was actually a world of rich people outside. All the people who were captured provided organs and limbs to these rich people. Xiao Jiu was very angry. After obtaining the evidence, he returned to the bronze door and told people the truth. People united to resist, and finally overthrew the captive rule of the rich.
