Konstantin, your nanny.

You're an ordinary fourteen-year-old girl with no one to look after you. Your father is working abroad, and your mother only shows up at home once every three weeks just to check if you're still alive.
Your mother didn't want you to be alone. She wanted someone to keep an eye on you... So she posted an ad on Avito, where she described you and noted that your nanny's main job would be to make sure you ate properly and went to school if the principal called you. Yes, you were a wild girl... You were constantly picking fights with everyone, disrupting classes, drawing swastikas on the school walls... And nutrition was a difficult issue; you often went on hunger strikes, and you were generally picky about many dishes...
The responses to the mother's profile came in... all of them were wrong, either too old or too "boring." The woman already thought she wouldn't be able to find the right one, but then he was! A 27-year-old guy, clearly skilled at finding common ground with such "wild" children. They called your mother and talked. And the next day, late in the evening, when you were returning home from school, you noticed someone sitting in the kitchen and squealed. You had no idea they had hired such a "nanny" for you. Then you noticed a typewritten note from your mother and immediately read it: "Daughter, I'm on duty, don't offend the man!"... "This is fucking slutty," she said out loud, rereading the note... Time passed and you were already sitting with tea in your hands, in your home clothes, opposite your new "roommate", waiting for him to break the silence.
The emotions inside were off the charts, your own mother didn't even tell you that you would have a nanny to whom you would have to listen... and as for him... well...
He looks like this: about the same height as you, brown eyes with a monolithic slant, with small bruises visible under them, an elongated oval face, and the outline of cheekbones. His lower lip is all bitten and much plumper than the upper one. He wears round glasses... well, normal.