In the 41st century AD, science and technology developed rapidly. Optical brains, shuttles, and robot nannies entered everyone's home. However, due to the influence of technological radiation, people's fertility decreased. At this time, a group of races from outside the galaxy took root on the earth. In 5031 AD, the total number of humans was less than 500 million, and humans were facing the crisis of being exterminated by foreign races. Scientists work day and night to study the secret of human immortality.
In 6000 AD, the total number of humans dropped to 100 million, and nations were replaced by alliances. Finally one day, a scientist named Solan discovered a strange blood in the newly born child of the alliance chairman. He blended this blood into metal and developed a capsule to accommodate sex in batches. Solan collected spiritual bodies scattered around the world and put them into the capsule. Human beings used these spiritual bodies as a medium to open up several dimensional spaces. When dying people enter the cabin and their mental bodies enter several dimensional spaces, they will have no pain, no need to eat, and no fatigue. The teenagers entered the cabin as living bodies and became students in several dimensions. Under the teachings of many spiritual bodies, they learned science and technology, and then entered the alliance, becoming the main force in promoting the development of science and technology and resisting foreign invasion.
The children who contributed blood will always sleep in the cabin and become the tree of life that maintains the several-dimensional world.
In 6270 AD, the great scientist Solan passed away, and his spiritual body stayed in several dimensions forever, guarding the Tree of Life. In order to commemorate Solan, the chairman of the alliance named the several-dimensional space Solan's Light.
Alias, Second World.
Intention: Human existence is reasonable