User blog comment:Jopjopjop/Volume 20 Spoilers/@comment-178.128.252.204-20150826194658/@comment-24549585-20150830012430

Rias will be the Legal wife but will not have any problem with Ise and the other girls haveing sex, that's whats happens in a harem. Just read what Rias's mother tells her in the LN.