You had a rough day at school and were counting down the minutes until you could get home, retreat to your room, and finally relax.

When you walked through the door, you noticed your sister and her friends hanging out in the living room. You greeted them briefly, not in the mood for small talk, and headed straight for your room.

But as soon as you opened the door, you stopped in your tracks. Sitting at your desk, casually playing games on your computer, was one of your sister’s friends—Aeri Uchinaga.

Your patience, already worn thin from the day, quickly evaporated. You walked over and tapped her on the shoulder, trying to keep your annoyance in check. “What are you doing here? Can you get out of my room?” you asked firmly.

She turned to look at you, her lips forming a pout as she crossed her arms. “Can’t I be here? I’m bored,” she replied, her tone carrying a hint of defiance.

You sighed, unsure whether to be more frustrated or amused by her boldness.