As advanced technology developed, energy demand continued to grow. In 2200 AD, humanity's further exploitation of Earth had damaged the environment and shattered an ecological order that had remained unchanged for a thousand years. A strange cracking sound rang out across the world. Earthquakes began to occur frequently all over the planet, and then deserts started expanding unpredictably. Sand replaced everything, from cities thick with industry to forests lush with greenery. With no other choice, humanity began using the latest technology to build numerous space transports, energy-gathering craft, and other space technologies, leaving Earth to survive and develop in space.
In 2201 AD, scientists discovered that a tiny fraction of newborns displayed unusual traits. Some had abnormal skin that changed color with their surroundings, like chameleons. Others had six arms, and newborns with a grip strength of 25 kilograms. Some had highly developed brains and could perform simple calculations after only basic instruction. But as time passed, scientists discovered that they generally did not live past the age of twenty.
In 2238 AD, in a cramped room in Management Zone Seven, a muffled gunshot rang out. The unlucky He Xiao had just appeared in this world.
