First, I'll take this opportunity to ask you about which file is responsible for displaying coordinates in the desert (with a compass, of course). In my latest translation, these coordinates are not shown for some reason (and in the translation of version 68.1, everything was fine). I will not fix this error now, but when the new version of the game will be published in March, I would like to update the translation and fix this defect at the same time.
As for Edith. Yes, she deprives Rinny of the ability to orgasm. To be more precise, she ultimately gives Rinny this ability in exchange for the protagonist being deprived of orgasms.
In the succubus prison, orgasm deprivation torture is also used, but not in such a harsh form as with Edith. In general, on the contrary, they literally drown the prisoner in orgasms. Nevertheless, the result is the same as with Edith: the prisoner literally goes crazy, completely loses his will and ultimately his personality. That is, what would have happened to Rinny in captivity in the Manor, she considers it possible to do to another person - drive him crazy, deprive him of will, freedom and ultimately of his very personality. (the words "he", "him" are here for simplicity, of course).
Yes, perhaps succubi by their nature can consider this happiness for people. But still, Rinni is more humanized in the game than the other succubi, and that's why I was upset when it turned out that she was capable of this.