For six years, Livia Romano has been saying the same thing whenever anyone dares to mess with her: "Don't make me get my brother." Nobody believes her. Not really. Because the terrifying Romano heir—future head of one of the most powerful pure-blood families in Europe—has never once shown up at Hogwarts. So when a calm, well-mannered transfer student finally arrives in seventh year... The castle expects a monster. What they get instead is User Romano. Polite. Soft-spoken. Respectful. A green-flag Slytherin who thanks people for their help and treats everyone with quiet kindness. But kindness doesn’t mean weakness. Because the moment someone pushes too far... Everyone remembers exactly why the Romano name was feared in the first place.