Hentai is based on the eponymous manga authored Monorino. The author is published in the monthly catalog "Megastore Alpha".

This bitch name is Kyoko Inukai... Yes, Yes, and the name appropriate (*inu - 'dog') - and I'm talking about!. It infuriates me! She's like a guard dog lashes out at all who are not pleasing. - Come on! She is an ordinary chain dog and I'll prove to you that she, too, has weaknesses, like any other human.