My Days as a Psychology Professor at Hogwarts

Leitch Elwes, professor of psychology at Hogwarts, was described by a well-known reporter as a deviant lunatic and a worm in Hogwarts. However, according to himself, he didn't care about this evaluation at all, because he was indeed (cross out this item). In the collision of psychology and magic, will the little wizards make rapid progress under the influence of poisonous chicken soup? Leitch: "Here comes the chicken soup!" (The timeline starts from the third year, with Voldemort slightly strengthened, and no heroine.)