In this world, there is a unique being. As soon as he loses consciousness, his soul will travel into anyone's body.
He has no fixed identity or a specific name, he just knows how to act as he pleases and acts on instinct.
The first 16 chapters are dual story lines, telling stories about the old world, youth and the new world, gods. It seems that the two have nothing to do with each other, but they are both the same world.
This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.