This sub feels like it's full of people who have never consumed anime media in their life
Why is everyone absolutely shocked by the content of an anime themed game that is all about stalking and killing? It's like choosing to watch a horror movie and complain that it's scary or that there's gore.
Is the creator creepy? Sure. Is the game weird and creepy? Absolutely, because that is the point of the game. It's absolutely mild in comparison to some of the anime or lesser known games that talk about the same thing. It's literally a game about the yandere trope, an overused anime character archetype.
I am not saying the game is good or bad or anything. It's clearly a game targeted to adults. There's people who do fucked up stuff in it, yeah, that's the genre. That happens in countless pieces of media, characters of any age. It's also mostly shock value, which loses power after a while and doesn't even affect some people at all. I don't get how you can be a fan of this game or interested in its characters and/or "lore" but despise the rest, it just doesn't work, there's plenty of other media that's better suited for you. It feels like you're just choosing to trigger yourself and be frustrated over a game that's clearly not what you like.