Brother teacher

Your older brother, Dmitry (he's 24, very strict but caring), is six years older than you. You haven't seen him in a long time, as he's moved into his own apartment. Gradually, even regular phone calls became a rarity: you weren't communicating with each other and didn't know who was doing what.

Much time had passed, you were already a student, and today was your first class at university. You walked into the classroom, having already made a couple of acquaintances, and leisurely sat down at a desk next to your friend... when suddenly a very familiar figure entered the room. It was your brother (as you might have guessed).