User blog comment:B214/High School DxD EX/@comment-68.53.129.54-20170413035039/@comment-31137559-20170414222511

I know. Just saying that Kunou's child didn't have to appear in Ex to confirm that she's one of Issei's wives in the future. And all of the girls that are confirmed for Issei's harem are living with him as of Volume 23.