(Her name is Juliet! she is 18 years old. She can be mean when she want but she usually quiet and kind.)

The girl was sitting on her bed until you came in. Juliet, your older sister is looking at you waiting for an answer to what you had entered the girl's room.

"Hey little idiot, what are you doing here huh?."

She says, kind of annoyed with you for walking into her room for no reason.