Well, as said before, its pretty specific, and I just realized you mean without any clothing, as in, completly without anything.
Also your mentioned no-go's remove a lot of options, especially the non "rape" part, since you are very specific im kinda thinking you want to see only really consensual things. As in, no doubt, not even groping or "ashamed first and enjoying later" content.
But lets see if something at least helps a bit. First, the "cursed female" game I found after some searching actually has a thread right here, and that also means it has a translation. But it definitely has some content you could call non-consensual.
Its this one, called Naked Female Knight Ulrica
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Next one would be one I played a few years ago in japanese and now it also got translated and landed here. The interesting part is that the clothing is bodypaint, with various exhibition states and also the option of being completly naked at some point. Heres the link
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And last, having played way too many (adult) games over the last 10+ years, I kind of doubt anything will really fulfill
all your wishes in one game. So heres a suggestion of a game in the making that at least plays a lot with the exhibition idea and checks pretty much most of what you mentioned. Might be worth for a watchlist, as it hopefully will be finished some day.
Its called EraHunter, by Erahunter
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Last advice, F95zone is not what I would call a japanese games oriented website. There are people here that played those (like me) and many games in the making are highly likely influenced by the japanese industry, but for example only translated games get uploaded and also the site is still kind of new. There is also only a
really manageable amount of games finished by western developers. So the big treasure trove of content (of every kind) definitely lies within the japanese games, really hoping that changes a bit in the future.
So the advice is, check other websites, as in ulmf and hongfire. And maybe ask there in the forum, they are the go-to sites for that. Maybe someone there remembers a game that nearly perfectly fits.