Another chastity story...i wonder if there'd be a "20:1" male to female population but that'd be just a horror-hentai (I assume he's holding condoms but even in a reverse world idk how many ppl would want a bug themed contraceptive...)
I know you've read 39:1 so I know you know that isn't the case. The problem with most of these "moral reversal" manga is it never feels realistic, at least with "I eat soft rice" some of those women are built like Chris Bumstead but even then, the reason men and women have the sexual morality we have currently is because women carry the babies and men don't so unless you have a series where there's gender imbalance or it's like an mpreg universe then it just makes no sense.
china has interesting slang like 'green tea bitch' , must be sucky for ppl that like drinking green tea or it affecting sales, unless they take advantage of that and use type cast actresses to advertise it , unless the term originated from a green tea company that got turned into meme status XD
Author-san's desires must've worsened to the extent of creating a world whose underlying societal tendencies outright require indulgence in said desires.
That said, they're really begging.. huh? Interesting.