User blog comment:B214/Light Novel Volume 16 spoilers/@comment-6096197-20131018185156

Rizevim preparing to defeat great red? LOL...... well.. i don't see it happening for some reason.

And wow.. that's a insane powerup rias get.. , able to defeat grendel?...holy. want to see it now.

Vampire country nearly annihilated?.. i wonder if its done by the strongest evil dragon or rizevim.

And i guess. thats why the author wrote in his blog. DxD start in this volume.. so he meant the organization. i wonder if vampire is included too..

Man. i wanted to see vali having a death flag instead of arthur.

I think. Rizevim  ability is straight OP.. just have no words for it but he is pretty cruel at least now we know that it isn't of vali parents scared of him its because of rizevim, no wonder we don't see him complaining about his parents.. well. anyway. can't wait to see what bad things happen in this volume..