User blog comment:Ixarising/Speculations, theories and predictions/@comment-112.207.6.51-20160519100122/@comment-1359322-20160519102936

I don't know where you watch it but Vali never made a child with Rias and neither will Rias hook with Vali. And this is a harem, so of course Ise marries more than just Rias.