User blog comment:B214/DxD Zero: Sirzechs story/@comment-2003:45:5D00:9D00:8C54:4158:CC33:1FAD-20181009184551/@comment-31137559-20181009205528

Well in the second arc, Super Devils weren't even a thing. It was morr like Sirzechs and Ajuka were Maou-class until Volume 12 when Super Devils were finally introduced.