During the Taikang period of the Xia Dynasty, the royal shaman "Wu Gui" carved a record of the king's debauchery on his bone armor and was sentenced to death for "beguiling the king with evil words." His bones and armor were smashed and burned, and his name was erased from all sacrifices.
From the moment he was burned to death, Emperor Fengdu knew: This man was unjustly accused.
But the law of heaven has a certain fate, and the fate of the wronged soul cannot be revealed on the day of unjust death - that is not the way of heaven, that is venting anger. To truly redress grievances, we must exchange merit for merit. The emperor left his soul in Fengdu to wait for an opportunity.
This wait is four thousand years.