User blog comment:B214/Volume 17 spoilers./@comment-24098614-20140318171834/@comment-24468758-20140319072142

If Koneko and Kuroka aren't nekoshous anymore what sense would it make to leave offspring to continue the race? Furthermore Issei is still a dragon and Akeno a fallen angel likewise. In Vol.10 life 2. she called herself a fallen angel and is sometimes referred to as a fallen angel.