Hogwarts Transfer Student

In 1989, Gavin Kelly became a teaching assistant in the lower grades of Hogwarts as a 15-year-old Muggle-born wizard. However, Gavin always felt that with the salary of a teaching assistant, he was doing the work of the principal and saving the world... ———————————— "The future of Muggles and wizards should not be decided by one person. The trend of this era cannot be stopped by one person. If I want to give this era a name, I would like to call it——" "Assistant era?" "Come on, Dumbledore, I still think the New World sounds better." "Isn't this a show?"