Welp, this was the latest pick-up from my back-log, and... it's kind of eh for a number of reasons, at least for me. Partly because I'm not entirely in the intended audience range. I like rape and corruption and whatnot as much as many other degenerates, but I'm not really into the whole "ruin the girl so she's uglier than she was when she started" angle among other things. She's a bit too chubby for my tastes to start with anyway...
Still, leaving that aside for now, the bigger problem imho is the translation, which has some glaring issues to it that. Quite frankly, I'm 90% certain that this is edited MTL, and even then it wasn't quite completely edited. There's a number of mistakes that only MTL would make, particularly one where instead of writing ass-pussy, they have "ass and pussy" in a context where there was no way they were referring to both, which is where MTL gets confused some times. There's all sorts of large and small examples, but that's not surprising really. Saikey maybe do actual translations some of the time, but odds are, it's not most of the time.
Not that it matters super much with this specific VN. There's barely any story, mostly just some ideas held together by hentai tropes and dried cum, and that's it. It starts with a couple of rape scenes, then time-skips a bit and during one more scene the girl basically goes all in on being a living onahole (who's name is Naho, because that joke is easy). After that, it's no longer rape and just all about how she's used by every single guy except her BF. Of course.
It's not really much of a corruption story, because the VN mostly glosses over it and jumps right into Naho being a masochist that enjoys the abuse done to her. You can't call it focused on rape, since only the first two and a half-ish scenes count, after that she's all in on it. It does have Netorare, though it's not emphasized much outside of the specific teacher route where she specifically gets off on mocking her boyfriend while she's being fucked by the teacher dude. I suppose it does a decent enough job of showing the end result of what's being done to her, of how she's become so cock-obsessed that the positive traits of the man she once loved have become negatives and so on... but without a proper process to get there, it's not really that entertaining from the corruption angle.
Really, it feels like the NTR was just added in for bait, but I doubt that it's emphasized enough to really satisfy the big fans of it. Especially since it's only really solidly present during the one teacher's ending and whatnot.
Speaking of the endings... You have three of them, determined by two choices, which boil down too whether Naho ends up in the hands of a couple of specific bastards or if she becomes the public-use cum-toilet of the whole school. Of course, this is a hentai world so the police and the like don't exist, so don't think too hard about how the heck those guys are getting away with this. Don't think about it too hard in general because there's just nothing there of note. The world building is terrible. The reason she has for ending up in that situation doesn't make any sense... so on and so forth.
All in all, the thing is good enough to schlick/fap/something a few times depending on how much you enjoy the type of content and Naho's looks, but not really much else. Not the worst way to waste some hours, but that's the best I can say about it.