User blog comment:Piyush Banerjee/Shin DxD 2 discussion/@comment-2605:E000:3E1A:4700:8DE1:BE76:9DDD:76D0-20190602092526/@comment-2601:87:8300:20D0:4058:945C:A426:2FE0-20190602215214

No in that case you might as well include Issei's parent or his clients. Honestly it just doesn't work and it would dissapoint/piss fans more any other candidates because despite what we think they are at least female. To Issei that's like stealing there future (and he doesn't want them to be in danger)-(actually says this in the novel ) and Rias wouldn't want that either to hurt Issei /betraying him. It's also like denying who he is as a harem king. It just won't happen. RAYNARE returning or a hybrid reincarnated angel/devil has a better chance. I'm surprised anyone would even thought about this question.