Heaven, human, and underworld.
Because there is no escape from fate, everyone must suffer the pain of reincarnation, and the heaven and the underworld are no exception. Now the people in the underworld all come from the reincarnation of the human world, and the same is true in the heaven. People in the underworld can return to the underworld after going through several reincarnations in the human world. If they make no big mistakes, they can live peacefully for 1,000 years before reincarnating in the human world.
The underworld and the heaven have always been at odds with each other. In order to prevent war from bringing disaster to the people of the heaven and underworld who reincarnate in the human world, the two worlds decided to send representatives to compete every 1,000 years. The story begins here...
The temporary update here will not be very fast because I am busy taking the IELTS exam recently. The normal update speed will be restored after August 5th.
There is also a serialized time travel article: http://www. Jjwxc. Net/onebook. Php? Novelid=110368