User blog comment:Crimson and Darkness/Volume 24 discussion blog/@comment-86.180.53.240-20171010132719/@comment-31137559-20171012173601

Or Thanatos could actually be the god of death in DxD(an actual god) and the original Grim Reaper and ultimate Grim Reaper. And some of his power was used to make the Grim Reapers we see now in DxD hence why Grim Reapers are a subspecies of god. Because they were made using a god's power. And Thanatos is a universal god like Ophis because you know that death is universal. That's the way I want Ishibumi to do it if he does.