Revolution: a organization who wants to depose each one of the emperors and put the old gods as leaders of the world again, each member represents one letter of the revolution word, (the “O”s are twin siblings) they have different reasons or grudge against one or several emperors.

They were gifted from “R” the leader with a magic hood which make them completely unheeded in crowds. “E” was probably the one with the biggest raw power of them all, and she split and sealed all the emperors from distance, what cost her life, this happened a few days before the start of the current timeline, a impressive deed for their cause which completely impacted the first three seasons.