its very a short content available, because they put a lot of time in CG, Art, and BGM. its a great game and Visual Novel. im not stopping you from buying the game, i mean you can support the developer to grow more. i could say, they doing a great job at this one
I may be wrong, but it seems to me once you buy it you get a link which enables you to download all future updates. (Writing as someone who has paid the price but is still waiting to test this on the next available update...)
that is how it works, you get a download link for that version emailed to you so be sure to keep it pined in your inbox. whenever there's an update, you download through that link
