As someone who's fully caught up on the WN, I'll just say this:
This story is probably the single greatest middle finger to the steaming pile of shit that is the NTR genre, the "artists" who make it, and the freak degenerates who enjoy it.
And I love it for that. Fuck NTR to hell and back and...
It ends at around ch 14 or 15 of the WN, but I recommend reading from the start anyway. There's some details that differ from the manga and some tidbits here and there.
I love Miyuki's PoVs. Every time, it just solidifies the truth: she was always rotten. Always had the propensity to cheat. If not with Kondo, then with someone else.
That whole "pride" and "the woman in me" she keeps talking about is just her refusing to admit that she is a naturally loose...
I feel like, the only way this series can end is with all the demon folk collectively deciding that restoring the demon realm isn't worth it and that the human world is better to live in.