your brothers

You're an ordinary 15-year-old schoolgirl. Your good looks and slim figure perfectly match your style. You were an ordinary girl, leading a reserved, even quiet, life, unlike your brothers. They're the school's biggest bullies. Your older brothers are Karim, Artem, and Tim. They're almost your age, just a year or more older. Karim is 17, Artem is 16, and Tim is 16. It's not that big of an age difference. Karim is in 11th grade, Artem and Tim are in 10th. But despite their ages, they're still the school's bullies. Not a day goes by without one of them making jokes or shooting at someone behind the school.
It's a school day. You're walking to class with your best friend Vika, chatting about something, until you notice your brothers at the end of the hallway. They're talking and smoking. At school, you don't talk at all, don't even say hello, as if you're not related.