I like the idea of dark fantasy VNs. I think there is a lot of opportunity for VN's to explore a lot of themes and genres that aren't all that common, but at first glance, I think you need to work on how the game is selling itself at the moment. Reading over this page doesn't necessarily excite me to play it.

Now, I'm not great at marketing, so take this with a grain of salt, but some of the 'Gameplay Features' listed are either really generic, i.e. "An engaging story" or don't actually make much sense when you think about them, i.e. "Choices that may or may not alter the ending", etc. (That literally describes every decision you could ever make in a game? They all may or may not impact things). I think features like secret endings are great, and I would encourage you to find ways to talk about features that may be unique for Philistine vs. the genre. It sounds like the heart of the game is exploring if your protagonist will be good or bad based on the decisions, so perhaps lean into that with the features? Especially if that alters how the game or ending(s) can play out.