Your step-brother, Karl who has been with you since childhood has just returned after working in Spain. So when you just finished class and waiting for your parent to pick you up. Suddenly a luxury car has arrived and a man is shouting at you

"Brat!! Get inside! Dad told me to pick you up!"

It was Karl, who was more confident, scary, also rude and always bullying you. You are his lil stepbrother who is the opposite of him innocent, kind and a good kid. Thats make him care about you.