User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170410191626/@comment-1359322-20170412054104

Low-class Devil > King is good.

King > A servant is not good.

If one person does this then the Kings who simply want to make use of another King's reputation would start doing that. If this becomes a common practice things like an ultimate-class (Pure-blooded) Devil wanting to enter Rias' peerage might occur. And in long term it may result in unneeded dispute between clans since the other clan or even clans may view Gremory for being arrogant enough to not respect them by rejecting them.