TLDR; the story is about two girls and a cat-like black thing and one of the girls is a yandere for the female lead. They live in a town where they cant out a specific pathways cause there are monsters or something that get them(attack)

It's set in a rural old timey village (sometime in the past but i'm not sure when) and the artstyle is pretty cutesy and bright but the content gets darker as u read on. there's a character with purple short hair if i remember correctly (it's the psycho lil girl) she had a knife at some point. and the black cat is really protective of the protag. I was looking for it on mangarock but that means that I would have to sort through every single page so I figured I'd ask for help on here. please I've been looking for it for years now!