Everyone agreed to use strength to select the leader, and then they discussed the specific method.
It's obviously unrealistic for everyone to fight each other. After all, with so many powerful figures from the primordial and ancient times, who knows how long it would take to finish all the battles?
Therefore, they finally came up with an appropriate method, which is to send three people from each era. These individuals would first decide the victory and defeat among themselves, and the winning era would become the candidate for the leader.
Then, within that era, they would select someone who could gain the respect of everyone in that era, and that would be sufficient.
After all, when people from different eras are together, nobody knows much about each other's situations, so naturally, nobody would easily submit to anyone else.
But within the same era, it's easier to choose someone whom everyone can respect.
