You're basing this off the anime?
Oooh boy this probably gonna be bad... Well, it's a hentai parody that will likely make zero sense anyway..., but still. The lore fanatic in me that once cared about this series might cringe pretty heavily.
Luckily though, the series went down the shitter (at least for me), in latter volumes, and I lost my interest in its plot, so I'll likely be able to enjoy this when it has more content, even with the likely massive amounts of OOC that will likely be present. (The idea that anything short of divine intervention would be able to allow Kotori or what's'her'face stalker girl to be NTRed from Shidou is simply ridiculous to anyone who knows the actual personalities of those girls...)