>they keep talking about having kids with Makoto
>we know that hyumans can't have children with mamonos but humans can
Isn't this the biggest hint that his mother's husband isn't his real father?
Tsuki ga michibiku isekai douchuu
They should have raped him.
The biggest one is probably his appearance. I don't completely believe that explanation about the blessing wearing off and not being fully adapted to Earth. I think there's also that unknown healer that helped him.
They tried at one point
Maybe even responding yes faster to Mio's request for sex. Or she should at least have worked harder to make him interested in her that way when she changed her mind.
Dunno. I kinda bought that explanation as to why his appearance looks normal because there are no other 'official' explanation imho.
About his mother cheating... that's just a theory right? Where does that come from anyway?
There's no proof she cheated again, but she did it once before leaving the goddess's world, so maybe she did it again.
This I don't think two hyumans ever makes an ugly/average child so him coming out like that is so striking.
I wouldn't mind him having demon blood either.
His mother cheated with a demon before getting married to his father. Also the loli priestess saw his true self with her mind eyes and it's a literal eldritch abomination that almost made her loose her sanity, like a typical scene in Lovecraft mythos, indicating that his actual nature is completely inhuman (and inhyuman also).
>The biggest one is probably his appearance
Imagine his father's reaction when he was born.