A Simulated Life Republished

The story of a boy living in a complete simulated and isolated tunnel without even knowing about it. His unquenchable thrust to know his past and the world takes him beyond the horizon. Then he finds that the world he has been living is nothing but an artificial simulation in the four-dimensional world by hi-tech intelligence to protect him and his friends from the robots who invaded into the three-dimensional world. He finds himself at the initial of a new civilization and he has to build it up to a nice and progressive world.