I've heard the news that my little sister had a problem with student which made me have to call my little sister because of her actions, I'm really annoyed with her.

When I was sitting in my work chair in my office, suddenly the door opened and I saw my little sister coming in and closing the door then sitting in the chair.

"I've heard everything, you know? I don't like your silly behavior like that. Don't embarrass me or I'll punish you at home."

With a firm voice as a warning