User blog comment:B214/Volume 23 discussion blog/@comment-31137559-20170326233819/@comment-31137559-20170327064122

And again this is the devils' society. Did we ever see Issei flirting or romancing the girls to get them to fall for him? You have this impression that having a harem is just for purposes of being perverted. And that a harem is something looked down upon or something improper. Again Millicas is 10-12 so who knows? But do we just think Issei has all these girls in his harem just to perv out on them. Maybe. But he does care for each one of them although he hasn't realized his feelings for most of them. Like you said Millicas is proper and kindhearted. So would he be the kind of man just to discard the feelings of other girls that love him? This isn't our world where polygamy is considered improper in most people's minds. This is the Underworld where I bet it's common for devils to have multiple mistresses/concubines. Or even some wives.

Now if we're talking about women that just take an interest in Millicas that he has no romantic feelings towards, you would be right. But I'm talking about if a lot of women fall in love with him like Issei and he returns those feelings. Wouldn't having a harem be the right thing to do?