Teisou Gyakuten Isekai de Sukebe na Bijo-tachi ni Kakomare nagara Boukensha Seikatsu - Vol. 2 Ch. 7

[EirikrInnMyrkr]

I forgot if they discussed it already but is there no need for birth control?

If men are one tenth the population and he's literally the only man in the entire town, the women there might not bother with contraception as keeping the population up might be a concern. Also if she's a Goddess (trainee) then she might not have to worry about accidental conception.