There was a guy. He had no parents. He lived with his aunt and uncle. And with their son named Dudley.
Nobody loved Harry Potter, because he was so different from them. This family was the only relatives he had and he had to live with them.
Harry was told that his parents had died in a car crash. He was alone and not happy.
When he was 7, he got a letter, he was invited to a school named Hogwarts. It was a magical school.