Disregarding the prime minister's... unique appearance.
There aren't necessarily that many mangas being translated where the 'villainess' is forced to marry someone like that. But there are way more chinese novels, which might never become manwhas of it.
Is it just a matter of taste with chinese deciding she should be married to someone in their second life / try , whereas JP focus more on them actually being otome game reincarnators, and just wanting to live alone?