damn they've really been overusing the "abused and neglected femc w/ a scheming sister and is rescued by the rich and powerful ml" trope recently huh?
Anyway, this is exactly why I migrated to Korean webtoons: the female leads are usually much more "active" in their own self-rescuing, and/or at least don't just sit there passively taking crap from others (key word, *usually*), and/or they're actually an isekai'd person possessing the villaines only to find out the "bullied FL" isn't as innocent as she looks, and sometimes even fakes her own "bullying" in order to (sooner or later) get the "villainess" executed (either way, showing NONE of the girls is as much of a passive dormat as heroine's in Japanese manga)
Some of them are cunning, yeah, but I mean, they're not so annoyingly blind, a.k.a. "pure" and "innocent" to the point of dumb (the one glaring flaw of Japanese heroines): a Korean heroine would immediately realize the foul play in them making her to cook breakfast for them with her spiritual powers, while still pretending she's "tainted" (a Korean heroine would've realized this can't mean anything else but that they obviously usurped her, because the fact that they still won't kick her out is because they need to keep secretly exploting thse great powers of hers, in order to be able to keep up appearances), and a Korean heroine wouldn't have refrained from calling out her cousin's betrayal for what it was.
I do see your point and I agree that there are indeed doormat FLs however not all of Jp manga Fls are as you described. I guess just don't generalize the heroines in both Kr manhwa and Jp manga coz there are really strong Fl in Jp manga and pretty doormat and dumb Fl in Kr manhwa(I had a fair share of those kind of stories).
Well, then call them "extremely self-repressed" rather than dumb, if you prefer, but it's still the "extreme (to the point of 'doormat')" variant of Yamato Nadeshiko (as in, taking the belief that women must always act "pure and proper" to such an extreme, that they end up mistak ing even mild self-preservation with "improper behavior in a lady"). It's a variant (according to some, an alleged "deviation/distortion") of the Japanese archetype of the Yamato Nadeshiko (which is a Japanese archetype, not Korean). Some call it a poorly done depiction of what the Yamato Nadeshiko is *really, truly supposed* to be like (quoting TV tropes: "A poorly done yamato nadeshiko, however, will turn out like an Extreme Doormat. They are silent and submissive without the inner strength of a true yamato nadeshiko"). BUT, the fact remains it was still generated from that concept. And it's also sth that still appears recurrently enough in Japanese manga. I'm not trying to discriminate against it (as there are indeed OTHER aspects of both the Japanese culture and Japanese manga that I do like, and that I'm a rabid fan of...) nor am I exaggerating, because this is an aspect of this one culture that has been amply debated both inside and outside of Japan.
Take chapter 2.1, for example: in a Korean webtoon, it's not as likely the author would have made the heroine so melodramatically take that marriage proposal of this "kind" new guy to mean that she only had a "black and white" choice between only two options: "marriage" or "slavery"... and then have her "reject" the marriage "that could save her own life, but at the cost of damaging his", just in order to make their heroine seem "even more self-sacrificial and altruistic" (in other words, masochistic) by having her "be so nice as to give up her one chance at freedom, for the guy's own good"... All WITHOUT EVER addressing the fact that this may be more than just since there are plenty of other options in between those two... and plenty of OTHER ways that this new guy could try to help (let alone, " save") the heroine...besides actually *marrying her*. Korean authors (I've noticed) tend to spot (and call out) false "black and white" choices and scenarios the second they see them, and thus they're a lot less prone to subject their readers to plots and characters and plots that (act as if they) lack the insight to perceive those.
In other words, I can totally see a Korean heroine saying (in the same kind of scenario): "You want to protect me, then just help me get out of here... There's no need to *marry* me, sir. You just need to help me get out of here and find a way to make a living somewhere else, just enough to have a decent life!"
bruh what happened to the man that was constantly harassing her??