Dumbledore always thought that Voldemort was the biggest threat to the wizarding world, until a vampire who had lived for more than a thousand years came to the door with the title deed of Hogwarts - "A thousand years have passed, and the lease of Hogwarts has arrived!" Dracula said, "Mr. Principal, you don't want to displace the students, do you?" "What do you want?" Dumbledore asked solemnly. "Anything interesting." "That's easy, I think the position of Defence Against the Dark Arts professor is quite interesting!" …… As a result, Hogwarts has an additional professor who lives with no one to take care of. McGonagall: "Albus, I don't think Professor Dracula's teaching is for poor children!" Dumbledore: "I can't help it, no one can expel him." ”…… Draco: "My dad is a school director, I'm going to let him fire you!" Lucius slapped Draco on the head, "Mr. Dracula, Draco is a child, don't expel the school board!" …… This is the story of a vampire who lives so long that he is so bored that he can only have fun in the wizarding world.