You heard that right. The protagonist thinks slavery is fine as long as they are kept in humane conditions. What humane treatment does he recommend for them?
Picking cotton.
If that didn't tickle your fancy, how about this one? The series has 100 maids (or 1000, the series can't decide so the number has switched a couple times) who are artificially created and are all helplessly in love with the MC. Despite that, they are all presented as being entirely sentient, yet everyone treats them like objects and that there is nothing wrong or morally questionable about putting them in harm's way or even mindwiping them.
On a completely different note, this series is strangely horny. You might be wondering why I'm pointing that out on a series with both the harem and ecchi genres tagged in plain sight. Well... it's really horny, yet also horny in the most bland manner possible. It's like a robot saw humans like sex appeal and awkwardly tried to mimic it without understanding why humans like it. There's voyeurism, incest, maids, lolis, sex dolls with chobits-style vagina switchs, woman-only tribes desperate to get pregnant, yanderes, implied rape and necrophilia. Despite all these things the world and characters feel sterile like I'm watching a YouTube video essay on the intricacies of sitcom apartment design.
Ain't that something?
But hey, maybe you like power fantasies and can shut out any moral questionability and odd pornography because it's fictional and doesn't need to adhere to the real world's sensibilities. A reader after my own heart. Well... even then you won't find anything here. The plot and motivations change on a dime, and I guarantee you you cannot go two chapters without it taking a sharp turn left. We've changed genres and topics so many times you'd think you were playing NieR: Automata. Unfortunately it's missing the connective tissue NieR has, so it's basically just a constant string of "where are we now and why are we doing this?", and on the off-chance you find a genre or idea you like, you can fully expect it to be gone before it has even settled in. The plot is nonexistent and the characters only exist to facilitate what the author has most recently decided to do.
Then there's the references... This manga is chock-full of them. Not in a charming Deadpool way, but in that way manga updates reviewers can't help but reference other things to make points and comparisons because they don't know how to use their own words. Off the top of my head I can think of this series referencing Doraemon, Attack on Titan, Harry Potter, Dragon Quest, Space Battleship Yamato, Ah! My Goddess, Pokemon, Chobits, and the nuking of Hiroshima. I made up one of those, and it isn't the one you think it is. Reading this series, the fourth wall has not just been taken down, it has been ground to absolute dust, yet the characters have somehow not noticed even the slightest of oddities in it.
All that being said, let me leave you with my favourite quote from this series:
"Ah, her breasts are so big for a ten-year-old!"
Don't read it.