I don't understand Spanish, so i can't rate the contents of the story. But:
- why does the text scroll? I can read a lot faster than the scrolling, and ok, the speed is a setting, but it's a weird feature to have at all?
- Why do all characters have only one pose? A visual novel is part story, part visuals and both are equally important. It would be richer if the visuals were more matching with the story.
- It takes 30+ seconds for the application to appear, I'd suggest a loading screen to give the user some feedback and at least the confirmation that the application has indeed started.