User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2607:FB90:2270:C313:35E6:D435:1799:3A37-20190610053646/@comment-181.115.108.64-20190620012915

That's wrong, Issei's base is high class, bxb is ultimate class devil, CxC is satan class and DxD where it be true or pseudo is Heavenly dragon class.