User blog comment:Jopjopjop/Volume 20 Spoilers/@comment-82.232.29.236-20150624051214/@comment-81.34.195.220-20150627162457

In an interview with Ichiei, he answer questions the first baby of the girls of Harem, and fist son of friends of Issei(Kiba, Saji and Gasper)..

Le Fay and Kuroka are added in this, the first girl a son(mentioned as new Merlin)  remember Arthur trust her sister with Issei  Kuroka a Girl obviously.

informative bombing, '''Koneko have 2 children(boy and girl) at once.. Only she'''..The author also says that imagines with many children