User blog comment:B214/Volume 23 discussion blog/@comment-191.214.24.46-20170601115450/@comment-26709288-20170602031110

" dxd must be diversified"

Incorrect, DxD is a anime that takes place in a fake town in japan, where the population is 98% Japanese. Also DxD focus on the supernatural aspect of Christianity, the devils and angels, so therefore human races is meaningless and has no bearing on the series.