I think I'm gonna salvage some of what I've written for new chapters in my fic for a re-written last act of the current chapter to wrap up the story in a standard Inyouchuu bad end (well, "bad" end in the way the OVAs end where the implication is that girls will be demon slaves forever as opposed to the games that make clear the demon breeding only lasts for a little while before they get messily eaten).

To each their own preferences, of course, but I'll have to say I prefer the OVA method!

Keep those breeding toys around!