>>3054246i know what you mean, it might be the mix of innocence/violence. i feel like koume is some demonic sprite that was tricked by the devil himself into leaving hell, now she's stuck here for eternity without a care for puny humans. i feel like she's barely in our world at all, like a ghost. i like the pictures that sort of embellish this.
there's an allure to otherworldly characters like this in a lot of media. that snail girl from monogatari is an example.