The Black Emperor of Hogwarts

As the son of Grindelwald and Dumbledore, Eric Grindelwald said: "Dark Lord? What a bargain! I am the Dark Emperor!" As the pure loyalist of all Dark Lords, Eric Grindelwald shouted: "System, let me become a god again!" "I have to say, this system is so powerful!!!! The Dark Supremacy System said: "Host, congratulations on winning the title of Star of Azkaban~~~~~~~~~~~~~~~~~ Lord of Nurmengard~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.