I'm a librarian who loves anime, manga, and reading a wide variety of genres.
"the parasitic encumbrance" = Sanau's perception of pregnancy/a fetus
Okay, I laughed. I love my nieces, but that's about how I view the thought of becoming pregnant myself.
Oh, and so far there's been one instance of mildly graphic on-page violence, but no orgies, sex slaves, or on-page sex of any kind. Certainly nothing to explain why my mom didn't want my teen self to read this. I suppose there's still plenty of time for that to change, although I hope the Venusian bee people don't play a starring role in any of that, because eww.