Reading the first chapter exposition, and hey, kids, this is what we call
EUGENICS
Obviously this is a mpreg bl so there's no need to take it seriously, but the ideology that being smart or prone to being a criminal are linked to genes is rooted in racism and white/aryan supremacy.
It's funny how it's presented as a little worldbuilding quirk lmao
According to the author (in a 2016 interview for chil-chil) the intended couple Is demon lord (seme) x Hero (uke)
Well its prettu obvious on the making out scene wispy hands was slowly going down