the problem with this manga the characters aren't complex at all they act like stereotypes
the only thing that made me stick a little was the gender equality of the slaves sibling not to be both female that try to woo him
but their character were muh
the villains were just stupid
and the ally were dodging responsibility left and right
and the mc was generic black haired Japanese guy who got super op from his previous knowledge who got harem somehow because why the hell not
the generic harem issue : racism ,being commoner,being slave,being a cute demi human girl ,daddy issue ,dead mother,being orphan with no relative whatsoever
its just an edgy mess