is the story ended, and do you hawe plans to some how continue it, maybe even in another game? and do game hawe canon ending?
The story ended. All that remains is the art.
Canon Ending? I think the "Hidden Lover Slut Ending" would be the Canon Ending in case I ever decided to continue this series, which I don't at this moment. There are many other projects after all that I plan to pursue. So it is best for you to assume that the game ended for now. Chances are there won't be a Sequel, unless many Patreons wish for it in the future.