After the Sixth Retrospection Era, which involved prolonged brutal killings and ascetic practices, Casio returned.
He had fully entered Perfect Combat Power, fully capable of contending against the peak Totem King Cassius, or the true God of Blood, Umirah. The Annihilation born after the massive tidal wave of calamities held a high status and also stepped into the perfect level, yet it was still a notch below the other perfect forces. Thus, it was defeated by Casio!
