Hogwarts: The Mafia Heir Takes Over the Wizarding World

[Harry Potter fan fiction + magic + guns + single heroine, Hermione + Slytherin]

When Havertz Payne steps into the Wizarding World, the old rules are crushed. With the iron fist of a mafia heir, he takes control of Slytherin and “optimizes” Knockturn Alley with modern management principles. The Death Eaters? His future hired muscle. The Chosen One? His mafia's public face. Hermione Granger watches him seamlessly blend magic and gunfire, and can't help falling for his dangerous yet brilliant charm. In the shadows, Voldemort finally feels afraid: “I'm into terrorism, but he's building a mafia culture! So which of us is the Dark Lord?”