User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-79.119.70.247-20191013210003/@comment-2600:1700:14E1:4110:A5C3:78D:23A2:1843-20191101000756

That does seem likely since rias and the rest of the rookies four are a reflection of the great maou.

Rias=Lucifer(domestic affairs)

Sona=Leviathan(foreign affairs)

Seekvaria=Beelzebub(science and technology;hence why she's a mech otaku)

Sairaorg=Asmodeus(military affairs)