User blog comment:B214/Season 3 confirmed!!!!!!/@comment-24.104.16.50-20150329203404/@comment-172.56.26.178-20150330144433

Just because at the moment issei has 8 girls doesn't mean his harem won't probably increase in the future plus he might have more than one kid with each girl, Asia for example mentioned in volume 16 she wanted 5 kids