User blog comment:Crimson and Darkness/DxD Updates 2~/@comment-27083298-20170630041625/@comment-24502975-20170630175419

Well, a little favoritism of characters who need it is okay. And Miyama probably loves her.

@Bennia It's at least after volume 14 because Kuroka and Le Fay are living at the Hyoudou Residence. You won't get a definite timeline until it's compiled into a DX volume though.