User blog comment:B214/Talk About What You Want! 3/@comment-24098614-20150329012653

I want to ask this because it will come up when Rias and Issei have children, and their children will not be considered Full-fledge Devils but are any of this children eligible to become Heirs of the Gremory Clan or are the Devil laws so specific and biased that they will not be considered at all because of their heritage.

I see that they would rather pick Millicas as the next Clan head of the Gremory even if Issei's children with Rias are born because to the Purebloods they will be considered Half Bloods.