Ark Rebirth: I Conquered the Dungeon Alone

Standing in the city, Qiu Fangsheng could only see the city wall, and in the center of the city stood a huge obelisk towering into the sky. In this world, since birth, a mechanical crystal is implanted in the left hand of a person to mark his identity, and it will disappear after death. In this world, outside the wall is a prehistoric zone with endless deserts. Four different walls separate the city and divide people into five classes. Is it safe within the walls? No, there are aliens in the steel forest inside the wall who look like humans and feed on human flesh. People call them Devourers. And underground, there are bottomless dungeons where wild beasts and devourers roam. Kill, plunder, and fight for resources and status! Who is the master of this world, wild beasts, devourers, or humans?