Harry Potter is an orphan. He has been fostered with his aunt's home since childhood and has been subjected to bullying. But on his 11th birthday, Harry accidentally received an admission letter from Hogwarts College. Harry learned from Hagrid, the giant sent by the academy to pick him up, that this was a magic academy and learned about his own origins. It turned out that Harry's parents were both great magicians who had both dedicated themselves in the battle against Voldemort, and only Harry survived. After entering Hogwarts, Harry showed unimaginable flying talent and was recommended by Professor McGonagall to join the Gryffindor Quidditch team. On the other hand, Harry discovered that a dark force seemed to be growing secretly in Hogwarts College, and the key to solving the mystery lies in the room guarded by the ferocious three-headed dog. Harry, Ron and Hermione, three good friends, decided to find out.