Unlock the Prehistoric Guardian System

An alien colony ship is trapped in a time barrier and sends an advance team to secretly delay the development of earth's technology! The intrusion of the invaders triggered the legacy of prehistoric civilization: the earth's guardian system. Awaken super powers, upgrade tasks, earn credits to upgrade the technology tree! An interstellar war about the future of the earth has begun... It is said that power station engineers are the innate saints who write science fiction novels. As a man in science and engineering who has trained in both hydropower and nuclear power, I am here to hand in an assignment and use this background to participate in the [Galaxy Project] science fiction essay competition. As for the pen name "Chalk River", no doubt it originated from Canada's Chalk River nuclear testing laboratory.