@Vikingix
Point per point.
Ch20 p28 : If you take me to your place, I won't tell Asami-chan and the manager a thing about our past --> A perfectly fine offer. Note how it's deliberately worded in a way that is not a threat, but an offer.
Ch20 p29 : But if you don't... I wonder what I'll do ? You understand, right ? --> If there's any threat, It is implicit, not explicit. I hate this guy but I have to commend his finesse.
Ch20 p30 : It's obious... that he's threatening me --> her thoughts remain in her mind thus irrelevant. We only know about them because the story made a point to include them. Only her acts are important regarding the issue at hand. Keep this in mind.
That's how she consented him to come with her. He directly threatened her for that. --> Unfortunately, your premises have been established as flawed (weak threat, only implicit, made into an offer instead) and thus the conclusion does not follow what's remaining.
Ch21 p10 : He strongly takes her arm, to assert his physical dominance --> Totally fine action if the other party accepts that. Many a girl loves this kind of thing, and they're not exactly strangers. To top it of, there's no resistance from her to talk about.
Ch21 p12 : While he asserts himself she's scared, he forcefully try to kiss her, after explaining he clearly intends to have sex with her. The result is her headbutting him to defend herself. Ch21 p15 : So that's how much you don't want to do it with me ? --> Here, she rejects one advance. If it was me, I'd back off; It's not worth it. But he knows her, so he can possibly interpret this that she's playing hard to get. I don't know enough about their past to judge this.
Ch21 p16 : He once again come to her, and try to assert his physical dominance, again. --> He chose not to back of. Physical dominance part, worked earlier so it's still a valid move here.
Ch21 p17 : If I reject him like this, he'll get angry and I don't know how things will turn out. --> that's just her thoughts, which we only know because of our privilege as readers.
That's where she's about to give up, for the sake of Yoshida. --> She actually gives explicit verbal consent, and thus the courting game ends and whatever begins, except yoshida arrives.
So we have several lines crossed here :
- First, a verbal threat that troubles will occur to her and people close to her if she doesn't invite him at her home --> Unfortunately implicit rather than explicit. And yes, she's weak not to reject him at this point, and this guy is fucked up, but ultimately the end result is she invites him into her place.
- Then, once he made his way to her home, he takes this opportunity of her being alone and defenseless to have sex with her --> Lots of subjectivity here. She took this man home. There's some expectations set. But ultimately, she should simply reject him, yet...
- She clearly refuses it, but he still try to abuse of his physical power to have his way --> He does neither threaten nor hurt her. Establishing physical dominance can just be seen as foreplay.
totally ignoring what she says --> "So that's how much you don't want to do it with me?" hardly counts as ignoring.
She finally consent to it only because of the 1st threat, which is still there --> the "threat", which was weak, not explicit and, to top it off, restricted to a specific action (let him visit her home) is hardly a reason to finally consent. It doesn't even follow, because the request had already been met, has not been renewed and no new threat has been made.
So, yeah, this guy is fucked up, but he plays by the rules, knows very well which boundaries not to cross, and gets clear, undeniable, verbal consent. You might hate him (I don't like him either, poor Sayu), but I have to tip my hat at how neatly he toils the line, and wins the game he seems to have been playing.
Do you imagine yourself making such a move on a girl ? Have you already done it ? --> Irrelevant to the discussion but to soothe your worries: No and no.