Guy is way too fucked up to be a real dad tho. His children are waaaay better off staying far from his morals. Let the sidekicks raise them, most of them are better suited for the job than Aperou.
ancient dungeon where ancient dragon reside kanami havent pregnant yet, i think even after "war" bettwen aporou(i think he already rank up again here but forgot what) and "human" coalition kanami not yet pregnant
Aporou suspect since she and he is high rankinh species its hard for both of them to have child this also happen with his other mistress since no new kids as far i remember