I, Diavolo: Anything

"Diavolo,Arcadius." These two names would echo throughout time, only stopping when there was no one to speak, no one to tell the story of the two demon princes who'd shaken the world to its core.

One of them tried to unite the gods and the demons, and the other sought to destroy the world.This was common knowledge passed down throughout legend, but those who told it missed something... They were the same person.