Hi! Don't worry, I think you already have the right file. Here's a quick summary to clear things up:
✅ The full Chapter 1 file is called **Female_Muscle_Leveling-1.24-ch1** and weighs around 3-4GB
❌ The demo is a completely separate page on itch.io — there's no way to confuse the two from the download link I sent you
🚧 Chapter 2 is currently in development and will be a separate game
If your file matches the name and size above, you have the full version and you're good to go!