Defense Against the Dark Arts Professor from the Future

In 2030, the wizarding world was invaded by another magical world. Under desperate circumstances, Glenn Renwell was commissioned by the Minister of Magic, Hermione Granger, to travel back to Hogwarts in 1991. To this end, he needs to complete the following tasks to save the wizarding world in the future. 1. Save the wizard elites who died during Voldemort's battle: Principal Dumbledore, Professor Lupin, Sirius, Fred... 2. Complete the wizard-Muggle conversion plan and increase the wizard population 3. Cultivate more powerful elite wizards The first thing Lowell, who became a Defense Against the Dark Arts professor, had to think about was how to survive a full year in the position of Defense Against the Dark Arts professor.