User blog comment:B214/High School DxD EX/@comment-25262334-20150828022642/@comment-74.197.121.121-20150828183213

Rias and Issei must have really been going at it to have Ixis third rather than last, given how low the pregnancy/fertility rate of pure devils are. It took 100 years after Sirzechs birth for Rias to be born after all (much less how long it took for them to have Sirzechs).

Probably didn't help that Akeno literally rubbed in the fact she was able to get pregnant first.

I do wonder if they're going to mention all his children, or if it's only going to mention children up to a certain volume so as to not completely spoil who is in Issei's harem later down the line.

I'd like to see mention of a lovely 9-tailed daughter from Kunou though, or a dragon/phoenix from Ravel.