He's a genetic scientist in a world were average life expectancy is 120 years, and they genetically modify the genes of their children so you know it must not be a crazy concept for them.
So mpreg exist here okay
It's supposed to be the first of his mind though. Still, he has to have a womb....the artist/author's reasoning doesn't make sense but ok. Either that or the translation is bad.
First of his kind (mpreg) assuming he has a working uterus.....
Only at chapter 1 and I can't stop laughing like why are these people not concerned at the fact that he's a MAN who wants to be pregnant like... Idk if i dont understand something kind of omegaverse or whatever mpreg exists here but still