There are visual novels out there that cost 20 or that have DLCs that cost cost 15 with half of the content. These aren't people who produce games at a large scale. This is a niche market and they have staff to pay and production costs to meet. I know it can feel like a large cost relative to the several free visual novels that exist but those are often passion projects that aren't made to support people. Look at the art style and look at the fact they're hiring voice actors. The costs are already higher than most visual novels and by the nature of business, if you're paying, that's what you're paying for.