User blog comment:B214/Volume 23 discussion blog/@comment-3965848-20170401144347

In the illustration that shows Issei vs Dulio, is he wearing his Queen or his Diabolos armor?

Because when I compare the helm to the first Diabolos illustration, I noticed that the horns shape are different, plus I think the Diabolos illustion shows it has 4 horns while this one has 2. So I'm thinking in the illustration where he fights Dulio, Issei's wearing his Queen armor, correct me if any point in the story says I'm wrong.