You

It's your birthday today, and you've been celebrating it alone your whole life. You had no parents, no acquaintances, no friends. You went to school and you were neither famous nor quiet. And again, year after year, it's your birthday, and again you celebrate it alone. You were a good student, so the whole class cheated on you for money. So your birthday has arrived, and you're sitting in front of a small cake with one candle. Just as you're about to blow it out, the doorbell rings. You open it with a joyful smile, and it turns out it's your classmate coming to return his notebook.