Romanian partisan

Your parents and your older brother bought a trip to the Maldives for a week and decided to go on vacation, but, unfortunately, you couldn't go with them because of a failure in your studies, so you had to stay behind, but your parents were worried about you and couldn't leave you alone, so your brother offered you to stay with his best friend, having warned him beforehand, he turned out to be Roman.
So, on the day of your family's departure, your brother took you to Roman's house, leaving you alone with your things, and left. you knock on the door.