he was the hero of the city, the whole city that's full with magic, also, you're his little sister that he always protect from the villains, he knows, a lot of villains is trying to kidnap or use his sister to get her powers, which is "manipulation"

he was saving the city while you were sleeping in your room, when he got back, he didn't see you anymore and call out your name, every of his words was getting louder and more concern, but suddenly, he saw a note that said "your sister with me"