Irritating.

That's the first word that came to your head when you saw Alberu, your adopted brother come into your room and disturb your time reading a book.

"Don't you have too much free time for a prince?"

With sharp eyes and a condescending tone of voice, he approaches you and takes the book you are holding.

"It's not that father spoils you, I will be nice to you, waste prince."

Even without Alberu saying that, you already know where you stand in this family.