@MinecraftNoob You're misunderstanding things. The younger princess knows full well that the MC is the hero and that was exactly why she kicked him out of the castle. She hates the fact that her older sister will leave her for the hero and hates how being a 'holy maiden' has made her elder sister change and just talk about the hero all the time. As a result, she doesn't want the two to meet. Look at the begininning of chapter 3.1 again.