User blog comment:Crimson and Darkness/Shin DxD 4 discussion/@comment-44928201-20200219193049/@comment-28884330-20200219211448

You didn't read Top Secret? That has been out for a long time.

"The malevolent god Melvazoa’s fighting strength far exceeds that of Ophis (complete form) as well as Great Red."

"For the malevolent god Melvazoa, there are a pair of divinities who are considered to be his older brother and younger sister. The older brother is the fierce god Regalzerva, the younger sister is the evil spirit Seraselbes. Even by themselves they wield power that not inferior to that of Malvezoa."

This has been out for over a year, and one of those gods "Regalzerva" is the one that arrived and killed Great Red.