I thought I should start by providing you a very useful link to the tag list (
here). This will tell you that there indeed currently is no "netorare" in the game, neither by F95's meaning, nor the general meaning, as the people being banged in the shack are not love interests, people the protagonist can bang, nor can they even be interacted with. They are more or less "faceless", and we have no connection with them. Which is great, on a personal note haha. That means it would go under voyeurism.
Bug stuff:
The developer pop-up about you having completed all content, popped up for me before I had completed the last scene with Izumi. Specifically, the scene with no art but where she says she doesn't want to do anything that time. It was also buggy, and I had issues leaving the area. Unsure if this was reported, if it was, then my bad.
Feedback stuff:
It'd be great if there perhaps were some characters that take a bit longer to progress with - so we get more "slow" corruption scenes. It sounded like that's the intention as it says not everyone will be as easy as Inko, and that'd be great. I agree not all characters should be slow, but if some are slower then it gives a nice balance for everyone.
One big thing for me would be the climax scenes. They are literally "the climax" scenes, so I would love if there was more love put into those, in terms of visual and audio feedback. For example the dick twitching a bit as MC is cumming (or depending on what's possible, the urethra at the bottom expanding to indicate flow of cum through there), and there's clear audio of the cum being shot into a stomach, being swallowed, or shot into womb etc. It adds so much to scenes, IMO.
Speaking of which, I was not a fan of how with Inko, the first time we have sex with her, the camera just cuts to black, and then we see MC already boning her. The best part of corrupting a character is seeing when they finally give in, and we have that first penetration and such (IMO). You could still do that, then cut to Izumi looking around after, while they're still having sex. Relevant to what I previously said, the climax for that scene also just cuts to the aftermath. You don't even get to see MC cumming in her. It's kind of like prepping this big ice cream, you add sprinkles and a cherry on top, then you throw out the ice cream. Where's my reward? Haha. This also happens a bit with Robin, where it cuts to black and MC is already boning her. I think that isn't the right way to go about it, personally.
Ah, just remembered: MC's dick changes size a lot. I understand that can be useful for having it really big in some scenes, and manageable for stuff like blowjobs, but perhaps write in a reason why it may change? Like a potion that allows you to grow/shrink it within reason for a few hours? Just an example—because it really is quite noticeable in some places.
You mention in your comment that you may add NTR, but I just wanted to give a word of caution. Since the game doesn't currently have any NTR, you have gathered a crowd in this first build, where many likely would very much dislike that type of content. It's good to be very clear with whether or not you are going to add NTR, no obfuscation of whether or not it will happen, and also being clear in whether or not it will be skippable, or completely avoidable. I recommend choosing the avoidable route if NTR
must be added, because of the previous mention of having gathered a fan base without NTR being a thing—and gathering a wider audience in general! Alternatively, go all-in on the NTR crowd. In short, I recommend: All-in on the NTR crowd (although this doesn't really fit the type of game it is, with the dom futa protagonist... IMO),
or add NTR but make it completely avoidable,
or don't add NTR at all. If you don't do it well, developers tend to just scare away both NTR fans and non-NTR fans, the worst of both worlds haha. This is all just my opinion and experience on the matter, of course! Do whatever you think best.
Sorry about the huge wall of text, I just felt I had so much to say, because I really do like the rest of the game, and as such wanted to give my opinion of how I think it could be even better! Thank you for making a fun game.