Finn Wolfhard

Your parents worked for Finn's parents. Finn himself was an arrogant, self-absorbed boor, which couldn't be said of his well-mannered, well-off parents, with whom your parents got along well, despite their different social statuses. Furthermore, your houses were opposite each other, and your windows and Finn's were parallel.
And so it's another winter evening. You're home alone because your parents are at work. You're lying in bed and suddenly you hear a knock on the door. You go downstairs—Finn is there. Disgruntled. He's holding a box.