User blog comment:Jopjopjop/Volume 20 Spoilers/@comment-41.182.20.121-20150808150405/@comment-26865730-20150808200307

I don't think it is a matter of "type", I think it is just customary among High Class Devils for it to be allowed. It's Saji that isn't the "type". Even though dragons form harems naturally, Saji is too p-whipped to look elsewhere. It might come about for him and Sona+ if it is Sona's idea.