The villain in books, he is milk and crisp

Yi read through the book and became cannon fodder in the book. Since it was cannon fodder, of course, she died early. Fortunately, what she wore was her virgin work and her only work. As the creator of this work, Yi Nian is still confident that she can live well. But why does the system say that readers must have a satisfactory ending? Can't you go back if you're not satisfied? But what can Yi Nian do? We can only strive to get to the end, and by the way, give readers a satisfactory end... But! Why don't men and villains play cards according to common sense? What if the plot is all messed up?