...Yeah, that’s rape. [1]

List 3 // https://www.mangago.me/home/mangalist/2390491/
List 4 // https://www.mangago.me/home/mangalist/3074838/

Entire list: https://www.mangaupdates.com/lists/public/qoi8ww9/101

The vast majority of sexual encounters are rape.

The secondary couple depicts a lot of rape. The bottom does not have the option or ability to say no, as there is a massive power imbalance, and him saying no will result in others deaths, if not his. Despite this, they end up together in the end.
A few scenes between the main couple also feature the main character just being expected to be consenting to sex, we don't see him consent until they are fucking, and have a major power imbalance.

A good amount of the sex scenes are rape. No, it doesn't matter that "they're animals" bcus the story is so damn unrealistic and they act human in so many ways. Why is it "they're animals" for the rape and not literally anything else they do that is completely humanized?

The Professor adds the MC into play with the bottom without telling the bottom, such as in the first sexual encounter. The bottom did not consent to that happening.

So I mean, almost all of this is messy rape, but in one of the scenes the bottom is coerced into raping the top by his brother (the bottom's brother) and the brother is also... very sexually touchy of his brother w/out consent.

Age difference, huge power imbalance, and the MC literally doesn't know/understand what is happening/going to happen.

Yeah, he just... gets raped and it's okay in the end or something bcus its ~love~ idfk.

Na-kyum is not given the option of not consenting, thus cannot consent.

MC is forced/coerced into non-consensual sex acts by the LI.