Seventeen years ago, Zhang Mingrui, after transmigrating into the world of magic, had only one goal: to ensure the survival of all wizards in the final battle against Voldemort's army. To improve the combat effectiveness of the wizards, Hogwarts introduced a new course—practical training! Thus, a million wizards in the magical world were made to cry by Zhang Mingrui's exams! Harry Potter: I survived Voldemort, only to find myself worse off under Professor Zhang! Hermione Granger: I have never seen such insane exam questions. Are these really solvable by underage wizards? Ron Weasley: Even after ten years, I wouldn't be able to answer Professor Zhang's questions! Professor Zhang's exams caused over a million wizards to wail! But when Voldemort's army swept in, they couldn't even reach the gates of Hogwarts...