Well, first you need to have your story saved on your PC. Then, you can open it with a suitable program like Notepad++ or WPS Writer. Start writing where you left off and make sure to save your changes regularly to avoid losing any new additions.
It's hard to say for sure. You need to consider factors like your PC's processor speed, amount of RAM, and graphics capabilities. If they meet certain standards, then it should be able to run the story smoothly. But if not, you might encounter performance issues.
It depends on your PC's specs. Royal Story likely has some basic system requirements. For example, it might require a certain amount of hard drive space, say around 2GB or so. If your PC has a slow processor and very little RAM, like 2GB or less, it may struggle to run the game smoothly. But if you have a modern PC with a good amount of resources, chances are it can run it well.
Maybe. Check the game's official website for the minimum system requirements. If your PC meets those, it should run. For example, if it requires a dual - core processor and you have a quad - core one, that's a good start.
It's hard to say for sure. You should look at the minimum and recommended specs for the game. If your PC meets or exceeds those, there's a good chance it can handle it. But if not, you might experience performance issues.
Sure. You might find birthday stories on dedicated story websites, or even on some general reading platforms. Just do a simple search and you'll likely come across what you're looking for.