Eh fuck it I'll address the rest of this shit as well.
The point of the "sexual harassment in the industry" scene is to establish Chloe as a "no means no" type of character who refuses to "bend the knee" This isn't a manga about ACTING. It's about an ACTRESS who discovers she has powerful spiritual abilities and decides to switch professions. No shit it doesn't linger on that point, the manga isn't about that.
Also possession as a concept, is to take control of another person's body against their will (usually). Of course there's going to be a "rapey" connotation to it.
What kind of comedic taste? Kai's declaration that he's a lolicon is met with scorn from even the evil spirits.
And disturbs even Chloe herself. It's never treated as a good or humorous thing. It's a character flaw, Chloe even says "What a waste of a handsome guy" in response to learning it so.
They're there to establish character traits for both our main characters here, in Kai's case a character flaw.
Aside from Chloe acknowledging that Noel's attractive on occasion, there's no sort of romantic interest on Noel's end. Given he's you know, A CAT, (not a cat-like human, an actual cat) this makes sense. He sees her more as his master/owner than anything else and just wants her to take care of him so he live the "lazy cat life".
This isn't a harem manga, Kai is really the ONLY character who seems to have genuine romantic interest in Chloe and it's pretty clear Chloe/Kai is the only pairing really being developed here.
Whereas in Rosario ALL the girls clearly wanted to fuck Tsukune, that's a harem manga.