In this world where good and evil are intertwined, legend has it that the World Tree was brought to this resource-poor land by immortals two thousand years ago. The World Tree was planted by the immortals and never appeared again.
The world tree is half yin and half yang. It absorbs the essence of heaven, earth, sun and moon. It grows very fast, is full of branches and leaves, and bears fruits.
According to historical records, the fruit of the World Tree is a sphere, half hot, half extremely cold, half white, and half black, just like Bagua.
It is said that there are four World Trees, scattered on the four continents.
The fruit that falls to the ground becomes yin and is called spirit and turns into various strange animals. The fruit that is picked and eaten before it matures becomes yang and is called qi. People who possess qi show their magical powers.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.